CVE-2026-32244

Summary

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries. This issue has been fixed in versions 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1. To work around this issue, restrict summary generation by tightening the allowed groups on the summarization Personas.

Affected Software

VendorProductVersion RangeStatus
discoursediscourse< 2026.1.4affected
discoursediscourse>= 2026.3.0-latest, < 2026.3.1affected
discoursediscourse>= 2026.4.0-latest, < 2026.4.1affected
discoursediscourse>= 2026.5.0-latest, < 2026.5.0-latest.1affected

Weaknesses

  • CWE-524: CWE-524: Use of Cache Containing Sensitive Information
  • CWE-200: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-672: CWE-672: Operation on a Resource after Expiration or Release

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References