Description
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, under certain non-default configurations, processing of PDF uploads could be exploited to obtain RCE on the server. This issue is patched in 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
discourse discourse
>= 2026.5.0-latest, < 2026.5.1affected>= 2026.4.0-latest, < 2026.4.2affected>= 2026.1.0-latest, < 2026.1.5affected
References
- https://github.com/discourse/discourse/security/advisories/GHSA-7wq5-jgww-5rw3 ↗
- https://github.com/discourse/discourse/commit/ca5a7e06167561928556afa2f237d67e459c6914 ↗
- https://github.com/discourse/discourse/releases/tag/v2026.1.5 ↗
- https://github.com/discourse/discourse/releases/tag/v2026.4.2 ↗
- https://github.com/discourse/discourse/releases/tag/v2026.5.1 ↗
- https://github.com/discourse/discourse/releases/tag/v2026.6.0 ↗