PT-2026-29319 · Discourse · Discourse

Published 2026-03-31 · Updated 2026-03-31 · CVE-2026-33415

Mitre

CVSS v4.0

5.1

Medium

AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

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 authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were not authorized to view. Insufficient access controls on a sentiment analytics endpoint allowed category permission boundaries to be bypassed. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2026-33415

Affected Products

Discourse

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-33415 · Security Note
• https://github.com/discourse/discourse/commit/e1bb146a1fadc863a516fbc26c6277273a025308 · Note
• https://github.com/discourse/discourse/security/advisories/GHSA-vj5f-gg8m-93xg · Note