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CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2026-32618

Discourse: Unauthorized channel membership inference via excluded_memberships_channel_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, there is possible channel membership inference from chat user search without authorization. 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