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CVE PROGRAM SOURCE RECORD5.1 Medium

CVE-2026-33415

Discourse: Improper Access Control in discourse-ai Allows Unauthorized Category Content Exposure

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 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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

discourse discourse

  • >= 2026.1.0-latest, < 2026.1.3affected
  • >= 2026.2.0-latest, < 2026.2.2affected
  • >= 2026.3.0-latest, < 2026.3.0affected

References