Add latest changes from gitlab-org/security/gitlab@15-10-stable-ee

33 files changed, 490 insertions, 60 deletions

diff --git a/app/assets/javascripts/pages/projects/blob/show/index.js b/app/assets/javascripts/pages/projects/blob/show/index.js
index a0f391c912b..02fcc6ea940 100644
--- a/app/assets/javascripts/pages/projects/blob/show/index.js
+++ b/app/assets/javascripts/pages/projects/blob/show/index.js
@@ -15,7 +15,7 @@ import '~/sourcegraph/load';
 import createStore from '~/code_navigation/store';
 import { generateRefDestinationPath } from '~/repository/utils/ref_switcher_utils';
 import RefSelector from '~/ref/components/ref_selector.vue';
-import { visitUrl } from '~/lib/utils/url_utility';
+import { joinPaths, visitUrl } from '~/lib/utils/url_utility';
 
 Vue.use(Vuex);
 Vue.use(VueApollo);
@@ -34,7 +34,7 @@ const initRefSwitcher = () => {
 
   if (!refSwitcherEl) return false;
 
-  const { projectId, projectRootPath, ref } = refSwitcherEl.dataset;
+  const { projectId, projectRootPath, ref, refType } = refSwitcherEl.dataset;
 
   return new Vue({
     el: refSwitcherEl,
@@ -42,7 +42,8 @@ const initRefSwitcher = () => {
       return createElement(RefSelector, {
         props: {
           projectId,
-          value: ref,
+          value: refType ? joinPaths('refs', refType, ref) : ref,
+          useSymbolicRefNames: true,
         },
         on: {
           input(selectedRef) {
diff --git a/app/assets/javascripts/repository/index.js b/app/assets/javascripts/repository/index.js
index 6cedc606a37..0db9dcb43df 100644
--- a/app/assets/javascripts/repository/index.js
+++ b/app/assets/javascripts/repository/index.js
@@ -2,7 +2,7 @@ import { GlButton } from '@gitlab/ui';
 import Vue from 'vue';
 import Vuex from 'vuex';
 import { parseBoolean } from '~/lib/utils/common_utils';
-import { escapeFileUrl, visitUrl } from '~/lib/utils/url_utility';
+import { joinPaths, escapeFileUrl, visitUrl } from '~/lib/utils/url_utility';
 import { __ } from '~/locale';
 import initWebIdeLink from '~/pages/projects/shared/web_ide_link';
 import PerformancePlugin from '~/performance/vue_performance_plugin';
@@ -128,7 +128,7 @@ export default function setupVueRepositoryList() {
 
     if (!refSwitcherEl) return false;
 
-    const { projectId, projectRootPath } = refSwitcherEl.dataset;
+    const { projectId, projectRootPath, refType } = refSwitcherEl.dataset;
 
     return new Vue({
       el: refSwitcherEl,
@@ -136,7 +136,8 @@ export default function setupVueRepositoryList() {
         return createElement(RefSelector, {
           props: {
             projectId,
-            value: ref,
+            value: refType ? joinPaths('refs', refType, ref) : ref,
+            useSymbolicRefNames: true,
           },
           on: {
             input(selectedRef) {
diff --git a/app/assets/javascripts/repository/utils/ref_switcher_utils.js b/app/assets/javascripts/repository/utils/ref_switcher_utils.js
index c62f7f709c4..bcad4a2c822 100644
--- a/app/assets/javascripts/repository/utils/ref_switcher_utils.js
+++ b/app/assets/javascripts/repository/utils/ref_switcher_utils.js
@@ -16,22 +16,29 @@ const getNamespaceTargetRegex = (ref) => new RegExp(`(/-/(blob|tree))/${ref}/(.*
  * @param {string} selectedRef - The selected ref from the ref dropdown.
  */
 export function generateRefDestinationPath(projectRootPath, ref, selectedRef) {
-  const currentPath = window.location.pathname;
-  const encodedHash = '%23';
+  const url = new URL(window.location.href);
+  const currentPath = url.pathname;
+  let refType = null;
   let namespace = '/-/tree';
   let target;
+  let actualRef = selectedRef;
+
+  const matches = selectedRef.match(/^refs\/(heads|tags)\/(.+)/);
+  if (matches) {
+    [, refType, actualRef] = matches;
+  }
+  if (refType) {
+    url.searchParams.set('ref_type', refType);
+  } else {
+    url.searchParams.delete('ref_type');
+  }
+
   const NAMESPACE_TARGET_REGEX = getNamespaceTargetRegex(ref);
   const match = NAMESPACE_TARGET_REGEX.exec(currentPath);
   if (match) {
     [, namespace, , target] = match;
   }
+  url.pathname = joinPaths(projectRootPath, namespace, actualRef, target);
 
-  const destinationPath = joinPaths(
-    projectRootPath,
-    namespace,
-    encodeURI(selectedRef).replace(/#/g, encodedHash),
-    target,
-  );
-
-  return `${destinationPath}${window.location.hash}`;
+  return url.toString();
 }
diff --git a/app/controllers/concerns/confirm_email_warning.rb b/app/controllers/concerns/confirm_email_warning.rb
index 8b7371cbc17..2efea461a35 100644
--- a/app/controllers/concerns/confirm_email_warning.rb
+++ b/app/controllers/concerns/confirm_email_warning.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 module ConfirmEmailWarning
+  include Gitlab::Utils::StrongMemoize
   extend ActiveSupport::Concern
 
   included do
@@ -17,11 +18,9 @@ module ConfirmEmailWarning
     return unless current_user
     return if current_user.confirmed?
 
-    email = current_user.unconfirmed_email || current_user.email
-
     flash.now[:warning] = format(
       confirm_warning_message,
-      email: email,
+      email: email_to_display,
       resend_link: view_context.link_to(_('Resend it'), user_confirmation_path(user: { email: email }), method: :post),
       update_link: view_context.link_to(_('Update it'), profile_path)
     ).html_safe
@@ -29,7 +28,16 @@ module ConfirmEmailWarning
 
   private
 
+  def email
+    current_user.unconfirmed_email || current_user.email
+  end
+  strong_memoize_attr :email
+
   def confirm_warning_message
     _("Please check your email (%{email}) to verify that you own this address and unlock the power of CI/CD. Didn't receive it? %{resend_link}. Wrong email address? %{update_link}.")
   end
+
+  def email_to_display
+    html_escape(email)
+  end
 end
diff --git a/app/controllers/projects/blob_controller.rb b/app/controllers/projects/blob_controller.rb
index 3413aeb6f8a..2d0c4a0a6c1 100644
--- a/app/controllers/projects/blob_controller.rb
+++ b/app/controllers/projects/blob_controller.rb
@@ -31,6 +31,7 @@ class Projects::BlobController < Projects::ApplicationController
   before_action :authorize_edit_tree!, only: [:new, :create, :update, :destroy]
 
   before_action :commit, except: [:new, :create]
+  before_action :check_for_ambiguous_ref, only: [:show]
   before_action :blob, except: [:new, :create]
   before_action :require_branch_head, only: [:edit, :update]
   before_action :editor_variables, except: [:show, :preview, :diff]
@@ -157,6 +158,15 @@ class Projects::BlobController < Projects::ApplicationController
     end
   end
 
+  def check_for_ambiguous_ref
+    @ref_type = ref_type
+
+    if @ref_type == ExtractsRef::BRANCH_REF_TYPE && ambiguous_ref?(@project, @ref)
+      branch = @project.repository.find_branch(@ref)
+      redirect_to project_blob_path(@project, File.join(branch.target, @path))
+    end
+  end
+
   def commit
     @commit ||= @repository.commit(@ref)
 
diff --git a/app/controllers/projects/tree_controller.rb b/app/controllers/projects/tree_controller.rb
index ba18a2e0dce..a8b54933487 100644
--- a/app/controllers/projects/tree_controller.rb
+++ b/app/controllers/projects/tree_controller.rb
@@ -28,6 +28,15 @@ class Projects::TreeController < Projects::ApplicationController
   def show
     return render_404 unless @commit
 
+    @ref_type = ref_type
+    if @ref_type == BRANCH_REF_TYPE && ambiguous_ref?(@project, @ref)
+      branch = @project.repository.find_branch(@ref)
+      if branch
+        redirect_to project_tree_path(@project, branch.target)
+        return
+      end
+    end
+
     if tree.entries.empty?
       if @repository.blob_at(@commit.id, @path)
         redirect_to project_blob_path(@project, File.join(@ref, @path))
diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index f18055f80b7..c12caecdc23 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -173,11 +173,19 @@ class ProjectsController < Projects::ApplicationController
       flash.now[:alert] = _("Project '%{project_name}' queued for deletion.") % { project_name: @project.name }
     end
 
+    if ambiguous_ref?(@project, @ref)
+      branch = @project.repository.find_branch(@ref)
+
+      # The files view would render a ref other than the default branch
+      # This redirect can be removed once the view is fixed
+      redirect_to(project_tree_path(@project, branch.target), alert: _("The default branch of this project clashes with another ref"))
+      return
+    end
+
     respond_to do |format|
       format.html do
         @notification_setting = current_user.notification_settings_for(@project) if current_user
         @project = @project.present(current_user: current_user)
-
         render_landing_page
       end
 
diff --git a/app/models/hooks/web_hook.rb b/app/models/hooks/web_hook.rb
index 7e55ffe2e5e..25ccdc2b4f1 100644
--- a/app/models/hooks/web_hook.rb
+++ b/app/models/hooks/web_hook.rb
@@ -36,7 +36,7 @@ class WebHook < ApplicationRecord
   after_initialize :initialize_url_variables
 
   before_validation :reset_token
-  before_validation :reset_url_variables, unless: ->(hook) { hook.is_a?(ServiceHook) }
+  before_validation :reset_url_variables, unless: ->(hook) { hook.is_a?(ServiceHook) }, on: :update
   before_validation :set_branch_filter_nil, if: :branch_filter_strategy_all_branches?
   validates :push_events_branch_filter, untrusted_regexp: true, if: :branch_filter_strategy_regex?
   validates :push_events_branch_filter, "web_hooks/wildcard_branch_filter": true, if: :branch_filter_strategy_wildcard?
@@ -105,7 +105,7 @@ class WebHook < ApplicationRecord
   # See app/validators/json_schemas/web_hooks_url_variables.json
   VARIABLE_REFERENCE_RE = /\{([A-Za-z]+[0-9]*(?:[._-][A-Za-z0-9]+)*)\}/.freeze
 
-  def interpolated_url
+  def interpolated_url(url = self.url, url_variables = self.url_variables)
     return url unless url.include?('{')
 
     vars = url_variables
@@ -131,7 +131,19 @@ class WebHook < ApplicationRecord
   end
 
   def reset_url_variables
-    self.url_variables = {} if url_changed? && !encrypted_url_variables_changed?
+    interpolated_url_was = interpolated_url(decrypt_url_was, url_variables_were)
+
+    return if url_variables_were.empty? || interpolated_url_was == interpolated_url
+
+    self.url_variables = {} if url_changed? && url_variables_were.to_a.intersection(url_variables.to_a).any?
+  end
+
+  def decrypt_url_was
+    self.class.decrypt_url(encrypted_url_was, iv: Base64.decode64(encrypted_url_iv_was))
+  end
+
+  def url_variables_were
+    self.class.decrypt_url_variables(encrypted_url_variables_was, iv: encrypted_url_variables_iv_was)
   end
 
   def initialize_url_variables
diff --git a/app/policies/project_policy.rb b/app/policies/project_policy.rb
index a955de77309..e2daa8b88a7 100644
--- a/app/policies/project_policy.rb
+++ b/app/policies/project_policy.rb
@@ -422,7 +422,6 @@ class ProjectPolicy < BasePolicy
   end
 
   rule { can?(:metrics_dashboard) }.policy do
-    enable :read_prometheus
     enable :read_deployment
   end
 
diff --git a/app/views/projects/blob/_breadcrumb.html.haml b/app/views/projects/blob/_breadcrumb.html.haml
index e77367a7b42..79b13dc861a 100644
--- a/app/views/projects/blob/_breadcrumb.html.haml
+++ b/app/views/projects/blob/_breadcrumb.html.haml
@@ -2,7 +2,7 @@
 .nav-block
   .tree-ref-container
     .tree-ref-holder
-      #js-tree-ref-switcher{ data: { project_id: @project.id, project_root_path: project_path(@project), ref: current_ref } }
+      #js-tree-ref-switcher{ data: { project_id: @project.id, project_root_path: project_path(@project), ref: current_ref, ref_type: @ref_type.to_s } }
 
     %ul.breadcrumb.repo-breadcrumb
       %li.breadcrumb-item
diff --git a/app/views/projects/tree/_tree_header.html.haml b/app/views/projects/tree/_tree_header.html.haml
index 6cd3c584f2a..d494d9cc36d 100644
--- a/app/views/projects/tree/_tree_header.html.haml
+++ b/app/views/projects/tree/_tree_header.html.haml
@@ -2,7 +2,7 @@
 
 .tree-ref-container.gl-display-flex.gl-flex-wrap.gl-gap-2.mb-2.mb-md-0
   .tree-ref-holder.gl-max-w-26
-    #js-tree-ref-switcher{ data: { project_id: @project.id, project_root_path: project_path(@project) } }
+    #js-tree-ref-switcher{ data: { project_id: @project.id, ref_type: @ref_type.to_s, project_root_path: project_path(@project) } }
 
   #js-repo-breadcrumb{ data: breadcrumb_data_attributes }
 
diff --git a/glfm_specification/output_example_snapshots/snapshot_spec.html b/glfm_specification/output_example_snapshots/snapshot_spec.html
index 96131037648..e1ef404ed03 100644
--- a/glfm_specification/output_example_snapshots/snapshot_spec.html
+++ b/glfm_specification/output_example_snapshots/snapshot_spec.html
@@ -7028,7 +7028,7 @@ references and their corresponding code points.</p>
 <copy-code></copy-code>
 </div>
 <div class="gl-relative markdown-code-block js-markdown-code">
-<pre data-sourcepos="7591:1-7595:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">&lt;p&gt;  &amp;amp; © Æ Ď</span>
+<pre data-sourcepos="7591:1-7595:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">&lt;p&gt;  &amp;amp; © Æ Ď</span>
 <span id="LC2" class="line" lang="plaintext">¾ ℋ ⅆ</span>
 <span id="LC3" class="line" lang="plaintext">∲ ≧̸&lt;/p&gt;</span></code></pre>
 <copy-code></copy-code>
@@ -7344,11 +7344,11 @@ stripped in this way:</p>
 <div>
 <div><a href="#example-343">Example 343</a></div>
 <div class="gl-relative markdown-code-block js-markdown-code">
-<pre data-sourcepos="7960:1-7962:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="example" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">` b `</span></code></pre>
+<pre data-sourcepos="7960:1-7962:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="example" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">` b `</span></code></pre>
 <copy-code></copy-code>
 </div>
 <div class="gl-relative markdown-code-block js-markdown-code">
-<pre data-sourcepos="7964:1-7966:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">&lt;p&gt;&lt;code&gt; b &lt;/code&gt;&lt;/p&gt;</span></code></pre>
+<pre data-sourcepos="7964:1-7966:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">&lt;p&gt;&lt;code&gt; b &lt;/code&gt;&lt;/p&gt;</span></code></pre>
 <copy-code></copy-code>
 </div>
 </div>
@@ -7356,12 +7356,12 @@ stripped in this way:</p>
 <div>
 <div><a href="#example-344">Example 344</a></div>
 <div class="gl-relative markdown-code-block js-markdown-code">
-<pre data-sourcepos="7974:1-7977:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="example" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">` `</span>
+<pre data-sourcepos="7974:1-7977:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="example" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">` `</span>
 <span id="LC2" class="line" lang="plaintext">`  `</span></code></pre>
 <copy-code></copy-code>
 </div>
 <div class="gl-relative markdown-code-block js-markdown-code">
-<pre data-sourcepos="7979:1-7982:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">&lt;p&gt;&lt;code&gt; &lt;/code&gt;</span>
+<pre data-sourcepos="7979:1-7982:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">&lt;p&gt;&lt;code&gt; &lt;/code&gt;</span>
 <span id="LC2" class="line" lang="plaintext">&lt;code&gt;  &lt;/code&gt;&lt;/p&gt;</span></code></pre>
 <copy-code></copy-code>
 </div>
@@ -7832,11 +7832,11 @@ not part of a [left-flanking delimiter run]:</p>
 <div>
 <div><a href="#example-363">Example 363</a></div>
 <div class="gl-relative markdown-code-block js-markdown-code">
-<pre data-sourcepos="8485:1-8487:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="example" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">* a *</span></code></pre>
+<pre data-sourcepos="8485:1-8487:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="example" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">* a *</span></code></pre>
 <copy-code></copy-code>
 </div>
 <div class="gl-relative markdown-code-block js-markdown-code">
-<pre data-sourcepos="8489:1-8491:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">&lt;p&gt;* a *&lt;/p&gt;</span></code></pre>
+<pre data-sourcepos="8489:1-8491:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">&lt;p&gt;* a *&lt;/p&gt;</span></code></pre>
 <copy-code></copy-code>
 </div>
 </div>
@@ -9790,7 +9790,7 @@ Other [Unicode whitespace] like non-breaking space doesn't work.</p>
 <div>
 <div><a href="#example-515">Example 515</a></div>
 <div class="gl-relative markdown-code-block js-markdown-code">
-<pre data-sourcepos="10823:1-10825:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="example" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">[link](/url "title")</span></code></pre>
+<pre data-sourcepos="10823:1-10825:32" lang="plaintext" class="code highlight js-syntax-highlight language-plaintext" data-canonical-lang="example" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">[link](/url "title")</span></code></pre>
 <copy-code></copy-code>
 </div>
 <div class="gl-relative markdown-code-block js-markdown-code">
diff --git a/lib/api/repositories.rb b/lib/api/repositories.rb
index 70535496b12..6f8d34ea387 100644
--- a/lib/api/repositories.rb
+++ b/lib/api/repositories.rb
@@ -203,6 +203,10 @@ module API
           render_api_error!("Target project id:#{params[:from_project_id]} is not a fork of project id:#{params[:id]}", 400)
         end
 
+        unless can?(current_user, :read_code, target_project)
+          forbidden!("You don't have access to this fork's parent project")
+        end
+
         cache_key = compare_cache_key(current_user, user_project, target_project, declared_params)
 
         cache_action(cache_key, expires_in: 1.minute) do
diff --git a/lib/extracts_ref.rb b/lib/extracts_ref.rb
index dba1aad639c..49c9772f760 100644
--- a/lib/extracts_ref.rb
+++ b/lib/extracts_ref.rb
@@ -5,7 +5,8 @@
 # Can be extended for different types of repository object, e.g. Project or Snippet
 module ExtractsRef
   InvalidPathError = Class.new(StandardError)
-
+  BRANCH_REF_TYPE = 'heads'
+  TAG_REF_TYPE = 'tags'
   # Given a string containing both a Git tree-ish, such as a branch or tag, and
   # a filesystem path joined by forward slashes, attempts to separate the two.
   #
@@ -91,7 +92,7 @@ module ExtractsRef
   def ref_type
     return unless params[:ref_type].present?
 
-    params[:ref_type] == 'tags' ? 'tags' : 'heads'
+    params[:ref_type] == TAG_REF_TYPE ? TAG_REF_TYPE : BRANCH_REF_TYPE
   end
 
   private
@@ -154,4 +155,13 @@ module ExtractsRef
   def repository_container
     raise NotImplementedError
   end
+
+  def ambiguous_ref?(project, ref)
+    return true if project.repository.ambiguous_ref?(ref)
+
+    return false unless ref&.starts_with?('refs/')
+
+    unprefixed_ref = ref.sub(%r{^refs/(heads|tags)/}, '')
+    project.repository.commit(unprefixed_ref).present?
+  end
 end
diff --git a/lib/gitlab/unicode.rb b/lib/gitlab/unicode.rb
index b49c5647dab..f291ea1b4ee 100644
--- a/lib/gitlab/unicode.rb
+++ b/lib/gitlab/unicode.rb
@@ -9,6 +9,12 @@ module Gitlab
     # https://idiosyncratic-ruby.com/41-proper-unicoding.html
     BIDI_REGEXP = /\p{Bidi Control}/.freeze
 
+    # Regular expression for identifying space characters
+    #
+    # In web browsers space characters can be confused with simple
+    # spaces which may be misleading
+    SPACE_REGEXP = /\p{Space_Separator}/.freeze
+
     class << self
       # Warning message used to highlight bidi characters in the GUI
       def bidi_warning
diff --git a/lib/rouge/formatters/html_gitlab.rb b/lib/rouge/formatters/html_gitlab.rb
index 436739bed12..a7e95a96b8b 100644
--- a/lib/rouge/formatters/html_gitlab.rb
+++ b/lib/rouge/formatters/html_gitlab.rb
@@ -25,7 +25,10 @@ module Rouge
           yield %(<span id="LC#{@line_number}" class="line" lang="#{@tag}">)
 
           line.each do |token, value|
-            yield highlight_unicode_control_characters(span(token, value.chomp! || value))
+            value = value.chomp! || value
+            value = replace_space_characters(value)
+
+            yield highlight_unicode_control_characters(span(token, value))
           end
 
           yield ellipsis if @ellipsis_indexes.include?(@line_number - 1) && @ellipsis_svg.present?
@@ -42,6 +45,10 @@ module Rouge
         %(<span class="gl-px-2 gl-rounded-base gl-mx-2 gl-bg-gray-100 gl-cursor-help has-tooltip" title="Content has been trimmed">#{@ellipsis_svg}</span>)
       end
 
+      def replace_space_characters(text)
+        text.gsub(Gitlab::Unicode::SPACE_REGEXP, ' ')
+      end
+
       def highlight_unicode_control_characters(text)
         text.gsub(Gitlab::Unicode::BIDI_REGEXP) do |char|
           %(<span class="unicode-bidi has-tooltip" data-toggle="tooltip" title="#{Gitlab::Unicode.bidi_warning}">#{char}</span>)
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 97b4b0e614e..6da296d5381 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -43539,6 +43539,9 @@ msgstr ""
 msgid "The default branch for this project has been changed. Please update your bookmarks."
 msgstr ""
 
+msgid "The default branch of this project clashes with another ref"
+msgstr ""
+
 msgid "The dependency list details information about the components used within your project."
 msgstr ""
 
diff --git a/spec/controllers/admin/hooks_controller_spec.rb b/spec/controllers/admin/hooks_controller_spec.rb
index 4101bd7f658..4e68ffdda2a 100644
--- a/spec/controllers/admin/hooks_controller_spec.rb
+++ b/spec/controllers/admin/hooks_controller_spec.rb
@@ -59,6 +59,7 @@ RSpec.describe Admin::HooksController do
         enable_ssl_verification: false,
         url_variables: [
           { key: 'token', value: 'some secret value' },
+          { key: 'baz', value: 'qux' },
           { key: 'foo', value: nil }
         ]
       }
@@ -71,7 +72,7 @@ RSpec.describe Admin::HooksController do
       expect(flash[:notice]).to include('was updated')
       expect(hook).to have_attributes(hook_params.except(:url_variables))
       expect(hook).to have_attributes(
-        url_variables: { 'token' => 'some secret value', 'baz' => 'woo' }
+        url_variables: { 'token' => 'some secret value', 'baz' => 'qux' }
       )
     end
   end
diff --git a/spec/controllers/concerns/confirm_email_warning_spec.rb b/spec/controllers/concerns/confirm_email_warning_spec.rb
index fca99d37000..7cfbd86cdcb 100644
--- a/spec/controllers/concerns/confirm_email_warning_spec.rb
+++ b/spec/controllers/concerns/confirm_email_warning_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe ConfirmEmailWarning do
+RSpec.describe ConfirmEmailWarning, feature_category: :system_access do
   before do
     stub_application_setting_enum('email_confirmation_setting', 'soft')
   end
@@ -82,6 +82,38 @@ RSpec.describe ConfirmEmailWarning do
             it { is_expected.to set_confirm_warning_for(user.email) }
           end
         end
+
+        context 'when user is being impersonated' do
+          let(:impersonator) { create(:admin) }
+
+          before do
+            allow(controller).to receive(:session).and_return({ impersonator_id: impersonator.id })
+
+            get :index
+          end
+
+          it { is_expected.to set_confirm_warning_for(user.email) }
+
+          context 'when impersonated user email has html in their email' do
+            let(:user) { create(:user, confirmed_at: nil, unconfirmed_email: "malicious@test.com<form><input/title='<script>alert(document.domain)</script>'>") }
+
+            it { is_expected.to set_confirm_warning_for("malicious@test.com&lt;form&gt;&lt;input/title=&#39;&lt;script&gt;alert(document.domain)&lt;/script&gt;&#39;&gt;") }
+          end
+        end
+
+        context 'when user is not being impersonated' do
+          before do
+            get :index
+          end
+
+          it { is_expected.to set_confirm_warning_for(user.email) }
+
+          context 'when user email has html in their email' do
+            let(:user) { create(:user, confirmed_at: nil, unconfirmed_email: "malicious@test.com<form><input/title='<script>alert(document.domain)</script>'>") }
+
+            it { is_expected.to set_confirm_warning_for("malicious@test.com&lt;form&gt;&lt;input/title=&#39;&lt;script&gt;alert(document.domain)&lt;/script&gt;&#39;&gt;") }
+          end
+        end
       end
     end
   end
diff --git a/spec/controllers/projects/blob_controller_spec.rb b/spec/controllers/projects/blob_controller_spec.rb
index c091badd09d..2c05521d997 100644
--- a/spec/controllers/projects/blob_controller_spec.rb
+++ b/spec/controllers/projects/blob_controller_spec.rb
@@ -2,15 +2,16 @@
 
 require 'spec_helper'
 
-RSpec.describe Projects::BlobController do
+RSpec.describe Projects::BlobController, feature_category: :source_code_management do
   include ProjectForksHelper
 
   let(:project) { create(:project, :public, :repository, previous_default_branch: previous_default_branch) }
   let(:previous_default_branch) { nil }
 
   describe "GET show" do
-    def request
-      get(:show, params: { namespace_id: project.namespace, project_id: project, id: id })
+    let(:params) { { namespace_id: project.namespace, project_id: project, id: id } }
+    let(:request) do
+      get(:show, params: params)
     end
 
     render_views
@@ -18,10 +19,34 @@ RSpec.describe Projects::BlobController do
     context 'with file path' do
       before do
         expect(::Gitlab::GitalyClient).to receive(:allow_ref_name_caching).and_call_original
-
+        project.repository.add_tag(project.creator, 'ambiguous_ref', RepoHelpers.sample_commit.id)
+        project.repository.add_branch(project.creator, 'ambiguous_ref', RepoHelpers.another_sample_commit.id)
         request
       end
 
+      context 'when the ref is ambiguous' do
+        let(:ref) { 'ambiguous_ref' }
+        let(:path) { 'README.md' }
+        let(:id) { "#{ref}/#{path}" }
+        let(:params) { { namespace_id: project.namespace, project_id: project, id: id, ref_type: ref_type } }
+
+        context 'and explicitly requesting a branch' do
+          let(:ref_type) { 'heads' }
+
+          it 'redirects to blob#show with sha for the branch' do
+            expect(response).to redirect_to(project_blob_path(project, "#{RepoHelpers.another_sample_commit.id}/#{path}"))
+          end
+        end
+
+        context 'and explicitly requesting a tag' do
+          let(:ref_type) { 'tags' }
+
+          it 'responds with success' do
+            expect(response).to be_ok
+          end
+        end
+      end
+
       context "valid branch, valid file" do
         let(:id) { 'master/README.md' }
 
diff --git a/spec/controllers/projects/clusters_controller_spec.rb b/spec/controllers/projects/clusters_controller_spec.rb
index 38f72c769f3..d16e5eea2e9 100644
--- a/spec/controllers/projects/clusters_controller_spec.rb
+++ b/spec/controllers/projects/clusters_controller_spec.rb
@@ -7,7 +7,7 @@ RSpec.describe Projects::ClustersController, feature_category: :kubernetes_manag
   include GoogleApi::CloudPlatformHelpers
   include KubernetesHelpers
 
-  let_it_be(:project) { create(:project) }
+  let_it_be_with_reload(:project) { create(:project) }
 
   let(:user) { create(:user) }
 
@@ -140,6 +140,27 @@ RSpec.describe Projects::ClustersController, feature_category: :kubernetes_manag
           expect(response).to redirect_to(new_user_session_path)
         end
       end
+
+      context 'with a public project' do
+        before do
+          project.update!(visibility_level: Gitlab::VisibilityLevel::PUBLIC)
+          project.project_feature.update!(metrics_dashboard_access_level: ProjectFeature::ENABLED)
+        end
+
+        context 'with guest user' do
+          let(:prometheus_body) { nil }
+
+          before do
+            project.add_guest(user)
+          end
+
+          it 'returns 404' do
+            get :prometheus_proxy, params: prometheus_proxy_params
+
+            expect(response).to have_gitlab_http_status(:not_found)
+          end
+        end
+      end
     end
   end
 
diff --git a/spec/controllers/projects/environments/prometheus_api_controller_spec.rb b/spec/controllers/projects/environments/prometheus_api_controller_spec.rb
index 68d50cf19f0..6b0c164e432 100644
--- a/spec/controllers/projects/environments/prometheus_api_controller_spec.rb
+++ b/spec/controllers/projects/environments/prometheus_api_controller_spec.rb
@@ -4,7 +4,7 @@ require 'spec_helper'
 
 RSpec.describe Projects::Environments::PrometheusApiController do
   let_it_be(:user) { create(:user) }
-  let_it_be(:project) { create(:project) }
+  let_it_be_with_reload(:project) { create(:project) }
   let_it_be(:proxyable) { create(:environment, project: project) }
 
   before do
@@ -70,6 +70,27 @@ RSpec.describe Projects::Environments::PrometheusApiController do
           expect(response).to redirect_to(new_user_session_path)
         end
       end
+
+      context 'with a public project' do
+        before do
+          project.update!(visibility_level: Gitlab::VisibilityLevel::PUBLIC)
+          project.project_feature.update!(metrics_dashboard_access_level: ProjectFeature::ENABLED)
+        end
+
+        context 'with guest user' do
+          let(:prometheus_body) { nil }
+
+          before do
+            project.add_guest(user)
+          end
+
+          it 'returns 404' do
+            get :prometheus_proxy, params: prometheus_proxy_params
+
+            expect(response).to have_gitlab_http_status(:not_found)
+          end
+        end
+      end
     end
   end
 end
diff --git a/spec/controllers/projects/tree_controller_spec.rb b/spec/controllers/projects/tree_controller_spec.rb
index 2b3adc719c1..61998d516e8 100644
--- a/spec/controllers/projects/tree_controller_spec.rb
+++ b/spec/controllers/projects/tree_controller_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe Projects::TreeController do
+RSpec.describe Projects::TreeController, feature_category: :source_code_management do
   let(:project) { create(:project, :repository, previous_default_branch: previous_default_branch) }
   let(:previous_default_branch) { nil }
   let(:user) { create(:user) }
@@ -15,15 +15,41 @@ RSpec.describe Projects::TreeController do
   end
 
   describe "GET show" do
+    let(:params) do
+      {
+        namespace_id: project.namespace.to_param, project_id: project, id: id
+      }
+    end
+
     # Make sure any errors accessing the tree in our views bubble up to this spec
     render_views
 
     before do
       expect(::Gitlab::GitalyClient).to receive(:allow_ref_name_caching).and_call_original
+      project.repository.add_tag(project.creator, 'ambiguous_ref', RepoHelpers.sample_commit.id)
+      project.repository.add_branch(project.creator, 'ambiguous_ref', RepoHelpers.another_sample_commit.id)
+      get :show, params: params
+    end
 
-      get :show, params: {
-        namespace_id: project.namespace.to_param, project_id: project, id: id
-      }
+    context 'when the ref is ambiguous' do
+      let(:id) { 'ambiguous_ref' }
+      let(:params) { { namespace_id: project.namespace, project_id: project, id: id, ref_type: ref_type } }
+
+      context 'and explicitly requesting a branch' do
+        let(:ref_type) { 'heads' }
+
+        it 'redirects to blob#show with sha for the branch' do
+          expect(response).to redirect_to(project_tree_path(project, RepoHelpers.another_sample_commit.id))
+        end
+      end
+
+      context 'and explicitly requesting a tag' do
+        let(:ref_type) { 'tags' }
+
+        it 'responds with success' do
+          expect(response).to be_ok
+        end
+      end
     end
 
     context "valid branch, no path" do
diff --git a/spec/controllers/projects_controller_spec.rb b/spec/controllers/projects_controller_spec.rb
index cd6d3990309..5ece9f09e5f 100644
--- a/spec/controllers/projects_controller_spec.rb
+++ b/spec/controllers/projects_controller_spec.rb
@@ -163,6 +163,69 @@ RSpec.describe ProjectsController, feature_category: :projects do
             expect(assigns(:notification_setting).level).to eq("watch")
           end
         end
+
+        context 'when there is a tag with the same name as the default branch' do
+          let_it_be(:tagged_project) { create(:project, :public, :custom_repo, files: ['somefile']) }
+          let(:tree_with_default_branch) do
+            branch = tagged_project.repository.find_branch(tagged_project.default_branch)
+            project_tree_path(tagged_project, branch.target)
+          end
+
+          before do
+            tagged_project.repository.create_file(
+              tagged_project.creator,
+              'file_for_tag',
+              'content for file',
+              message: "Automatically created file",
+              branch_name: 'branch-to-tag'
+            )
+
+            tagged_project.repository.add_tag(
+              tagged_project.creator,
+              tagged_project.default_branch, # tag name
+              'branch-to-tag' # target
+            )
+          end
+
+          it 'redirects to tree view for the default branch' do
+            get :show, params: { namespace_id: tagged_project.namespace, id: tagged_project }
+            expect(response).to redirect_to(tree_with_default_branch)
+          end
+        end
+
+        context 'when the default branch name can resolve to another ref' do
+          let!(:project_with_default_branch) do
+            create(:project, :public, :custom_repo, files: ['somefile']).tap do |p|
+              p.repository.create_branch("refs/heads/refs/heads/#{other_ref}", 'master')
+              p.change_head("refs/heads/#{other_ref}")
+            end.reload
+          end
+
+          let(:other_ref) { 'branch-name' }
+
+          context 'but there is no other ref' do
+            it 'responds with ok' do
+              get :show, params: { namespace_id: project_with_default_branch.namespace, id: project_with_default_branch }
+              expect(response).to be_ok
+            end
+          end
+
+          context 'and that other ref exists' do
+            let(:tree_with_default_branch) do
+              branch = project_with_default_branch.repository.find_branch(project_with_default_branch.default_branch)
+              project_tree_path(project_with_default_branch, branch.target)
+            end
+
+            before do
+              project_with_default_branch.repository.create_branch(other_ref, 'master')
+            end
+
+            it 'redirects to tree view for the default branch' do
+              get :show, params: { namespace_id: project_with_default_branch.namespace, id: project_with_default_branch }
+              expect(response).to redirect_to(tree_with_default_branch)
+            end
+          end
+        end
       end
 
       describe "when project repository is disabled" do
diff --git a/spec/factories/project_hooks.rb b/spec/factories/project_hooks.rb
index a7f562df92d..3e70b897df6 100644
--- a/spec/factories/project_hooks.rb
+++ b/spec/factories/project_hooks.rb
@@ -7,7 +7,7 @@ FactoryBot.define do
     project
 
     trait :url_variables do
-      url_variables { { 'abc' => 'supers3cret' } }
+      url_variables { { 'abc' => 'supers3cret', 'def' => 'foobar' } }
     end
 
     trait :token do
diff --git a/spec/features/admin/users/user_spec.rb b/spec/features/admin/users/user_spec.rb
index 1552d4e6187..66129617220 100644
--- a/spec/features/admin/users/user_spec.rb
+++ b/spec/features/admin/users/user_spec.rb
@@ -271,6 +271,36 @@ RSpec.describe 'Admin::Users::User', feature_category: :user_management do
           icon = first('[data-testid="incognito-icon"]')
           expect(icon).not_to be nil
         end
+
+        context 'when viewing the confirm email warning', :js do
+          let_it_be(:another_user) { create(:user, :unconfirmed) }
+
+          let(:warning_alert) { page.find(:css, '[data-testid="alert-warning"]') }
+          let(:expected_styling) { { 'pointer-events' => 'none', 'cursor' => 'default' } }
+
+          context 'with an email that does not contain HTML' do
+            before do
+              subject
+            end
+
+            it 'displays the warning alert including the email' do
+              expect(warning_alert.text).to include("Please check your email (#{another_user.email}) to verify")
+            end
+          end
+
+          context 'with an email that contains HTML' do
+            let(:malicious_email) { "malicious@test.com<form><input/title='<script>alert(document.domain)</script>'>" }
+            let(:another_user) { create(:user, confirmed_at: nil, unconfirmed_email: malicious_email) }
+
+            before do
+              subject
+            end
+
+            it 'displays the impersonation alert, excludes email, and disables links' do
+              expect(warning_alert.text).to include("check your email (#{another_user.unconfirmed_email}) to verify")
+            end
+          end
+        end
       end
 
       context 'ending impersonation' do
diff --git a/spec/frontend/repository/utils/ref_switcher_utils_spec.js b/spec/frontend/repository/utils/ref_switcher_utils_spec.js
index 7f708f13eaa..220dbf17398 100644
--- a/spec/frontend/repository/utils/ref_switcher_utils_spec.js
+++ b/spec/frontend/repository/utils/ref_switcher_utils_spec.js
@@ -1,5 +1,6 @@
 import { generateRefDestinationPath } from '~/repository/utils/ref_switcher_utils';
 import setWindowLocation from 'helpers/set_window_location_helper';
+import { TEST_HOST } from 'spec/test_constants';
 import { refWithSpecialCharMock, encodedRefWithSpecialCharMock } from '../mock_data';
 
 const projectRootPath = 'root/Project1';
@@ -16,16 +17,38 @@ describe('generateRefDestinationPath', () => {
     ${`${projectRootPath}/-/blob/${currentRef}/dir1/test.js`}           | ${`${projectRootPath}/-/blob/${selectedRef}/dir1/test.js`}
     ${`${projectRootPath}/-/blob/${currentRef}/dir1/dir2/test.js`}      | ${`${projectRootPath}/-/blob/${selectedRef}/dir1/dir2/test.js`}
     ${`${projectRootPath}/-/blob/${currentRef}/dir1/dir2/test.js#L123`} | ${`${projectRootPath}/-/blob/${selectedRef}/dir1/dir2/test.js#L123`}
-  `('generates the correct destination path for  $currentPath', ({ currentPath, result }) => {
+  `('generates the correct destination path for $currentPath', ({ currentPath, result }) => {
     setWindowLocation(currentPath);
-    expect(generateRefDestinationPath(projectRootPath, currentRef, selectedRef)).toBe(result);
+    expect(generateRefDestinationPath(projectRootPath, currentRef, selectedRef)).toBe(
+      `${TEST_HOST}/${result}`,
+    );
+  });
+
+  describe('when using symbolic ref names', () => {
+    it.each`
+      currentPath                                                         | nextRef                                             | result
+      ${`${projectRootPath}/-/blob/${currentRef}/dir1/dir2/test.js#L123`} | ${'someHash'}                                       | ${`${projectRootPath}/-/blob/someHash/dir1/dir2/test.js#L123`}
+      ${`${projectRootPath}/-/blob/${currentRef}/dir1/dir2/test.js#L123`} | ${'refs/heads/prefixedByUseSymbolicRefNames'}       | ${`${projectRootPath}/-/blob/prefixedByUseSymbolicRefNames/dir1/dir2/test.js?ref_type=heads#L123`}
+      ${`${projectRootPath}/-/blob/${currentRef}/dir1/dir2/test.js#L123`} | ${'refs/tags/prefixedByUseSymbolicRefNames'}        | ${`${projectRootPath}/-/blob/prefixedByUseSymbolicRefNames/dir1/dir2/test.js?ref_type=tags#L123`}
+      ${`${projectRootPath}/-/tree/${currentRef}/dir1/dir2/test.js#L123`} | ${'refs/heads/prefixedByUseSymbolicRefNames'}       | ${`${projectRootPath}/-/tree/prefixedByUseSymbolicRefNames/dir1/dir2/test.js?ref_type=heads#L123`}
+      ${`${projectRootPath}/-/tree/${currentRef}/dir1/dir2/test.js#L123`} | ${'refs/tags/prefixedByUseSymbolicRefNames'}        | ${`${projectRootPath}/-/tree/prefixedByUseSymbolicRefNames/dir1/dir2/test.js?ref_type=tags#L123`}
+      ${`${projectRootPath}/-/tree/${currentRef}/dir1/dir2/test.js#L123`} | ${'refs/heads/refs/heads/branchNameContainsPrefix'} | ${`${projectRootPath}/-/tree/refs/heads/branchNameContainsPrefix/dir1/dir2/test.js?ref_type=heads#L123`}
+    `(
+      'generates the correct destination path for $currentPath with ref type when it can be extracted',
+      ({ currentPath, result, nextRef }) => {
+        setWindowLocation(currentPath);
+        expect(generateRefDestinationPath(projectRootPath, currentRef, nextRef)).toBe(
+          `${TEST_HOST}/${result}`,
+        );
+      },
+    );
   });
 
   it('encodes the selected ref', () => {
     const result = `${projectRootPath}/-/tree/${encodedRefWithSpecialCharMock}`;
 
     expect(generateRefDestinationPath(projectRootPath, currentRef, refWithSpecialCharMock)).toBe(
-      result,
+      `${TEST_HOST}/${result}`,
     );
   });
 });
diff --git a/spec/helpers/hooks_helper_spec.rb b/spec/helpers/hooks_helper_spec.rb
index a6cfbfe86ca..d8fa64e099a 100644
--- a/spec/helpers/hooks_helper_spec.rb
+++ b/spec/helpers/hooks_helper_spec.rb
@@ -26,7 +26,7 @@ RSpec.describe HooksHelper do
       it 'returns proper data' do
         expect(subject).to match(
           url: project_hook.url,
-          url_variables: Gitlab::Json.dump([{ key: 'abc' }])
+          url_variables: Gitlab::Json.dump([{ key: 'abc' }, { key: 'def' }])
         )
       end
     end
diff --git a/spec/lib/rouge/formatters/html_gitlab_spec.rb b/spec/lib/rouge/formatters/html_gitlab_spec.rb
index 79bfdb262c0..6fc1b395fc8 100644
--- a/spec/lib/rouge/formatters/html_gitlab_spec.rb
+++ b/spec/lib/rouge/formatters/html_gitlab_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe Rouge::Formatters::HTMLGitlab do
+RSpec.describe Rouge::Formatters::HTMLGitlab, feature_category: :source_code_management do
   describe '#format' do
     subject { described_class.format(tokens, **options) }
 
@@ -67,5 +67,24 @@ RSpec.describe Rouge::Formatters::HTMLGitlab do
         is_expected.to include(%{<span class="unicode-bidi has-tooltip" data-toggle="tooltip" title="#{message}">}).exactly(4).times
       end
     end
+
+    context 'when space characters and zero-width spaces are used' do
+      let(:lang) { 'ruby' }
+      let(:tokens) { lexer.lex(code, continue: false) }
+
+      let(:code) do
+        <<~JS
+          def\u00a0\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000hello
+        JS
+      end
+
+      it 'replaces the space characters with spaces' do
+        is_expected.to eq(
+          "<span id=\"LC1\" class=\"line\" lang=\"ruby\">" \
+          "<span class=\"k\">def</span><span class=\"err\">                </span><span class=\"n\">hello</span>" \
+          "</span>"
+        )
+      end
+    end
   end
 end
diff --git a/spec/models/hooks/web_hook_spec.rb b/spec/models/hooks/web_hook_spec.rb
index 8fd76d2a835..48dfaff74d8 100644
--- a/spec/models/hooks/web_hook_spec.rb
+++ b/spec/models/hooks/web_hook_spec.rb
@@ -242,6 +242,22 @@ RSpec.describe WebHook, feature_category: :integrations do
         expect(hook.url_variables).to eq({})
       end
 
+      it 'resets url variables if url is changed and url variables are appended' do
+        hook.url = 'http://suspicious.example.com/{abc}/{foo}'
+        hook.url_variables = hook.url_variables.merge('foo' => 'bar')
+
+        expect(hook).not_to be_valid
+        expect(hook.url_variables).to eq({})
+      end
+
+      it 'resets url variables if url is changed and url variables are removed' do
+        hook.url = 'http://suspicious.example.com/{abc}'
+        hook.url_variables = hook.url_variables.except("def")
+
+        expect(hook).not_to be_valid
+        expect(hook.url_variables).to eq({})
+      end
+
       it 'does not reset url variables if both url and url variables are changed' do
         hook.url = 'http://example.com/{one}/{two}'
         hook.url_variables = { 'one' => 'foo', 'two' => 'bar' }
@@ -249,6 +265,18 @@ RSpec.describe WebHook, feature_category: :integrations do
         expect(hook).to be_valid
         expect(hook.url_variables).to eq({ 'one' => 'foo', 'two' => 'bar' })
       end
+
+      context 'without url variables' do
+        subject(:hook) { build_stubbed(:project_hook, project: project, url: 'http://example.com') }
+
+        it 'does not reset url variables' do
+          hook.url = 'http://example.com/{one}/{two}'
+          hook.url_variables = { 'one' => 'foo', 'two' => 'bar' }
+
+          expect(hook).to be_valid
+          expect(hook.url_variables).to eq({ 'one' => 'foo', 'two' => 'bar' })
+        end
+      end
     end
 
     it "only consider these branch filter strategies are valid" do
diff --git a/spec/policies/project_policy_spec.rb b/spec/policies/project_policy_spec.rb
index 383f56b6ef5..50f425f4efe 100644
--- a/spec/policies/project_policy_spec.rb
+++ b/spec/policies/project_policy_spec.rb
@@ -727,6 +727,39 @@ RSpec.describe ProjectPolicy, feature_category: :system_access do
     end
   end
 
+  describe 'read_prometheus', feature_category: :metrics do
+    using RSpec::Parameterized::TableSyntax
+
+    before do
+      project.project_feature.update!(metrics_dashboard_access_level: ProjectFeature::ENABLED)
+    end
+
+    let(:policy) { :read_prometheus }
+
+    where(:project_visibility, :role, :allowed) do
+      :public   | :anonymous | false
+      :public   | :guest     | false
+      :public   | :reporter  | true
+      :internal | :anonymous | false
+      :internal | :guest     | false
+      :internal | :reporter  | true
+      :private  | :anonymous | false
+      :private  | :guest     | false
+      :private  | :reporter  | true
+    end
+
+    with_them do
+      let(:current_user) { public_send(role) }
+      let(:project) { public_send("#{project_visibility}_project") }
+
+      if params[:allowed]
+        it { is_expected.to be_allowed(policy) }
+      else
+        it { is_expected.not_to be_allowed(policy) }
+      end
+    end
+  end
+
   describe 'update_max_artifacts_size' do
     context 'when no user' do
       let(:current_user) { anonymous }
@@ -1002,7 +1035,7 @@ RSpec.describe ProjectPolicy, feature_category: :system_access do
           let(:current_user) { guest }
 
           it { is_expected.to be_allowed(:metrics_dashboard) }
-          it { is_expected.to be_allowed(:read_prometheus) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
           it { is_expected.to be_allowed(:read_deployment) }
           it { is_expected.to be_allowed(:read_metrics_user_starred_dashboard) }
           it { is_expected.to be_allowed(:create_metrics_user_starred_dashboard) }
@@ -1012,7 +1045,7 @@ RSpec.describe ProjectPolicy, feature_category: :system_access do
           let(:current_user) { anonymous }
 
           it { is_expected.to be_allowed(:metrics_dashboard) }
-          it { is_expected.to be_allowed(:read_prometheus) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
           it { is_expected.to be_allowed(:read_deployment) }
           it { is_expected.to be_disallowed(:read_metrics_user_starred_dashboard) }
           it { is_expected.to be_disallowed(:create_metrics_user_starred_dashboard) }
@@ -1038,12 +1071,14 @@ RSpec.describe ProjectPolicy, feature_category: :system_access do
           let(:current_user) { guest }
 
           it { is_expected.to be_disallowed(:metrics_dashboard) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
         end
 
         context 'with anonymous' do
           let(:current_user) { anonymous }
 
           it { is_expected.to be_disallowed(:metrics_dashboard) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
         end
       end
 
@@ -1066,7 +1101,7 @@ RSpec.describe ProjectPolicy, feature_category: :system_access do
           let(:current_user) { guest }
 
           it { is_expected.to be_allowed(:metrics_dashboard) }
-          it { is_expected.to be_allowed(:read_prometheus) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
           it { is_expected.to be_allowed(:read_deployment) }
           it { is_expected.to be_allowed(:read_metrics_user_starred_dashboard) }
           it { is_expected.to be_allowed(:create_metrics_user_starred_dashboard) }
@@ -1076,6 +1111,7 @@ RSpec.describe ProjectPolicy, feature_category: :system_access do
           let(:current_user) { anonymous }
 
           it { is_expected.to be_disallowed(:metrics_dashboard) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
         end
       end
     end
@@ -1098,12 +1134,14 @@ RSpec.describe ProjectPolicy, feature_category: :system_access do
           let(:current_user) { guest }
 
           it { is_expected.to be_disallowed(:metrics_dashboard) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
         end
 
         context 'with anonymous' do
           let(:current_user) { anonymous }
 
           it { is_expected.to be_disallowed(:metrics_dashboard) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
         end
       end
 
@@ -1122,12 +1160,14 @@ RSpec.describe ProjectPolicy, feature_category: :system_access do
           let(:current_user) { guest }
 
           it { is_expected.to be_disallowed(:metrics_dashboard) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
         end
 
         context 'with anonymous' do
           let(:current_user) { anonymous }
 
           it { is_expected.to be_disallowed(:metrics_dashboard) }
+          it { is_expected.to be_disallowed(:read_prometheus) }
         end
       end
     end
diff --git a/spec/requests/api/repositories_spec.rb b/spec/requests/api/repositories_spec.rb
index b146dda5030..8853eff0b3e 100644
--- a/spec/requests/api/repositories_spec.rb
+++ b/spec/requests/api/repositories_spec.rb
@@ -572,6 +572,22 @@ RSpec.describe API::Repositories, feature_category: :source_code_management do
     context 'when authenticated', 'as a developer' do
       it_behaves_like 'repository compare' do
         let(:current_user) { user }
+
+        context 'when user does not have read access to the parent project' do
+          let_it_be(:group) { create(:group) }
+          let(:forked_project) { fork_project(project, current_user, repository: true, namespace: group) }
+
+          before do
+            forked_project.add_guest(current_user)
+          end
+
+          it 'returns 403 error' do
+            get api(route, current_user), params: { from: 'improve/awesome', to: 'feature', from_project_id: forked_project.id }
+
+            expect(response).to have_gitlab_http_status(:forbidden)
+            expect(json_response['message']).to eq("403 Forbidden - You don't have access to this fork's parent project")
+          end
+        end
       end
     end
 
diff --git a/spec/services/web_hook_service_spec.rb b/spec/services/web_hook_service_spec.rb
index 5736bf885be..b4250fcf04d 100644
--- a/spec/services/web_hook_service_spec.rb
+++ b/spec/services/web_hook_service_spec.rb
@@ -130,8 +130,8 @@ RSpec.describe WebHookService, :request_store, :clean_gitlab_redis_shared_state,
       context 'there is userinfo' do
         before do
           project_hook.update!(
-            url: 'http://{one}:{two}@example.com',
-            url_variables: { 'one' => 'a', 'two' => 'b' }
+            url: 'http://{foo}:{bar}@example.com',
+            url_variables: { 'foo' => 'a', 'bar' => 'b' }
           )
           stub_full_request('http://example.com', method: :post)
         end