4.3 MEDIUM
- CVSS version: 3.1
- Attack vector (AV): NETWORK
- Attack complexity (AC): LOW
- Privileges required (PR): LOW
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): LOW
- Integrity impact (I): NONE
- Availability impact (A): NONE
Discourse: Unauthorized channel membership inference via excluded_memberships_channel_id
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, there is possible channel membership inference from chat user search without authorization. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
References
Affected products
- ==>= 2026.2.0-latest, < 2026.2.2
- ==>= 2026.3.0-latest, < 2026.3.0
- ==>= 2026.1.0-latest, < 2026.1.3
Matching in nixpkgs
pkgs.discourse
Discourse is an open source discussion platform
pkgs.discourseAllPlugins
Discourse is an open source discussion platform
pkgs.discourse-mail-receiver
Helper program which receives incoming mail for Discourse
pkgs.python312Packages.pydiscourse
Python library for working with Discourse
pkgs.python313Packages.pydiscourse
Python library for working with Discourse
pkgs.python314Packages.pydiscourse
Python library for working with Discourse
pkgs.grafanaPlugins.grafana-discourse-datasource
Allows users to search and view topics, posts, users, tags, categories, and reports on a given Discourse forum through Grafana
Package maintainers
-
@talyz Kim Lindberger <kim.lindberger@gmail.com>
-
@Dettorer Paul Hervot <paul.hervot@dettorer.net>
-
@nagisa Simonas Kazlauskas <nixpkgs@kazlauskas.me>