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CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2026-32951

Discourse: Authorization bypass in oneboxer via user-controlled category id

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 user can obtain shared draft topic titles by sending an inline onebox request with a category_id parameter matching the shared drafts category. 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