Merge pull request #3380 from ClearlyClaire/glitch-soc/merge-4.3

Merge upstream changes up to 02c9c71 into stable-4.3

Author: ClearlyClaire

CHANGELOG.md

@@ -2,6 +2,18 @@
 
 All notable changes to this project will be documented in this file.
 
+## [4.3.19] - 2026-02-03
+
+### Security
+
+- Fix ActivityPub collection caching logic for pinned posts and featured tags not checking blocked accounts ([GHSA-ccpr-m53r-mfwr](https://github.com/mastodon/mastodon/security/advisories/GHSA-ccpr-m53r-mfwr))
+
+### Fixed
+
+- Fix relationship cache not being cleared when handling account migrations (#37664 by @ClearlyClaire)
+- Fix error when encountering invalid tag in updated object (#37635 by @ClearlyClaire)
+- Fix recycled connections not being immediately closed (#37335 and #37674 by @ClearlyClaire and @shleeable)
+
 ## [4.3.18] - 2026-01-20
 
 ### Security

app/controllers/activitypub/collections_controller.rb

@@ -4,17 +4,31 @@ class ActivityPub::CollectionsController < ActivityPub::BaseController
   vary_by -> { 'Signature' if authorized_fetch_mode? }
 
   before_action :require_account_signature!, if: :authorized_fetch_mode?
+  before_action :check_authorization
   before_action :set_items
   before_action :set_size
   before_action :set_type
 
   def show
     expires_in 3.minutes, public: public_fetch_mode?
-    render_with_cache json: collection_presenter, content_type: 'application/activity+json', serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter
+
+    if @unauthorized
+      render json: collection_presenter, content_type: 'application/activity+json', serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter
+    else
+      render_with_cache json: collection_presenter, content_type: 'application/activity+json', serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter
+    end
   end
 
   private
 
+  def check_authorization
+    # Because in public fetch mode we cache the response, there would be no
+    # benefit from performing the check below, since a blocked account or domain
+    # would likely be served the cache from the reverse proxy anyway
+
+    @unauthorized = authorized_fetch_mode? && !signed_request_account.nil? && (@account.blocking?(signed_request_account) || (!signed_request_account.domain.nil? && @account.domain_blocking?(signed_request_account.domain)))
+  end
+
   def set_items
     case params[:id]
     when 'featured'
@@ -57,11 +71,7 @@ def collection_presenter
   end
 
   def for_signed_account
-    # Because in public fetch mode we cache the response, there would be no
-    # benefit from performing the check below, since a blocked account or domain
-    # would likely be served the cache from the reverse proxy anyway
-
-    if authorized_fetch_mode? && !signed_request_account.nil? && (@account.blocking?(signed_request_account) || (!signed_request_account.domain.nil? && @account.domain_blocking?(signed_request_account.domain)))
+    if @unauthorized
       []
     else
       yield

docker-compose.yml

@@ -59,7 +59,7 @@ services:
   web:
     # You can uncomment the following line if you want to not use the prebuilt image, for example if you have local code changes
     # build: .
-    image: ghcr.io/glitch-soc/mastodon:v4.3.18
+    image: ghcr.io/glitch-soc/mastodon:v4.3.19
     restart: always
     env_file: .env.production
     command: bundle exec puma -C config/puma.rb
@@ -83,7 +83,7 @@ services:
     # build:
     #   dockerfile: ./streaming/Dockerfile
     #   context: .
-    image: ghcr.io/glitch-soc/mastodon-streaming:v4.3.18
+    image: ghcr.io/glitch-soc/mastodon-streaming:v4.3.19
     restart: always
     env_file: .env.production
     command: node ./streaming/index.js
@@ -102,7 +102,7 @@ services:
   sidekiq:
     # You can uncomment the following line if you want to not use the prebuilt image, for example if you have local code changes
     # build: .
-    image: ghcr.io/glitch-soc/mastodon:v4.3.18
+    image: ghcr.io/glitch-soc/mastodon:v4.3.19
     restart: always
     env_file: .env.production
     command: bundle exec sidekiq

lib/mastodon/version.rb

@@ -13,7 +13,7 @@ def minor
     end
 
     def patch
-      18
+      19
     end
 
     def default_prerelease