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CVE-2026-33428

Published: Mar 20, 2026

Modified: Mar 25, 2026

PUBLISHED

Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a non-staff user with elevated group membership could access deleted posts belonging to any user due to an overly broad authorization check on the deleted posts index endpoint. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

Vendor	Product	Versions
discourse	discourse	affected `= 2026.3.0-latest` affected `>= 2026.2.0-latest, < 2026.2.1` affected `>= 2026.1.0-latest, < 2026.1.2`

Weaknesses (CWE)

References

https://github.com/discourse/discourse/security/advisories/GHSA-frcw-p4mc-x6mp

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