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CVE-2026-33424
5.9 MEDIUM
- CVSS version: 3.1
- Attack vector (AV): ADJACENT_NETWORK
- Attack complexity (AC): HIGH
- Privileges required (PR): HIGH
- User interaction (UI): REQUIRED
- Scope (S): UNCHANGED
- Confidentiality impact (C): HIGH
- Integrity impact (I): HIGH
- Availability impact (A): LOW
PM access granted through invites after access revocation
Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an attacker can grant access to a private message topic through invites even after they lose access to that PM. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.
References
- https://github.com/discourse/discourse/security/advisories/GHSA-hgcp-p7hq-cwxw x_refsource_CONFIRM
Affected products
discourse
- === 2026.3.0-latest
- ==>= 2026.2.0-latest, < 2026.2.1
- ==>= 2026.1.0-latest, < 2026.1.2
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>