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CVE-2026-33300

Published: Mar 31, 2026

Modified: Apr 1, 2026

PUBLISHED

Description

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, an authorization bypass in the Category Chatables Controller show action allowed moderators to get information on hidden groups names and user count. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

Vendor	Product	Versions
discourse	discourse	affected `>= 2026.1.0-latest, < 2026.1.3` affected `>= 2026.2.0-latest, < 2026.2.2` affected `>= 2026.3.0-latest, < 2026.3.0`

Weaknesses (CWE)

References

https://github.com/discourse/discourse/security/advisories/GHSA-wrwm-vqx2-6x4v

x_refsource_CONFIRM

https://github.com/discourse/discourse/commit/07f66658cce81a099a0d7115db5f3c69f5d3cca2

x_refsource_MISC

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