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.
References (6)
Core 6
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/discourse/discourse/security/advisories/GHSA-7wq5-jgww-5rw3
X_Refsource_Misc x_refsource_misc
https://github.com/discourse/discourse/commit/ca5a7e06167561928556afa2f237d67e459c6914
X_Refsource_Misc x_refsource_misc
https://github.com/discourse/discourse/releases/tag/v2026.1.5
X_Refsource_Misc x_refsource_misc
https://github.com/discourse/discourse/releases/tag/v2026.4.2
X_Refsource_Misc x_refsource_misc
https://github.com/discourse/discourse/releases/tag/v2026.5.1
X_Refsource_Misc x_refsource_misc
https://github.com/discourse/discourse/releases/tag/v2026.6.0
Scores
CVSS v3
7.5
EPSS
0.0033
EPSS Percentile
25.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-78
Status
published
Products (5)
discourse/discourse
2026.6.0
discourse/discourse
2026.1.0 - 2026.1.5
discourse/discourse
>= 2026.1.0-latest, < 2026.1.5
discourse/discourse
>= 2026.4.0-latest, < 2026.4.2
discourse/discourse
>= 2026.5.0-latest, < 2026.5.1
Published
Jul 09, 2026
Tracked Since
Jul 09, 2026