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Description

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 In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries.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.

PUBLISHED Reserved 2026-03-11 | Published 2026-05-19 | Updated 2026-05-19 | Assigner GitHub_M




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem types

CWE-524: Use of Cache Containing Sensitive Information

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CWE-672: Operation on a Resource after Expiration or Release

Product status

< 2026.1.4
affected

>= 2026.3.0-latest, < 2026.3.1
affected

>= 2026.4.0-latest, < 2026.4.1
affected

>= 2026.5.0-latest, < 2026.5.0-latest.1
affected

References

github.com/...course/security/advisories/GHSA-hjmg-2mww-vfvx

cve.org (CVE-2026-32244)

nvd.nist.gov (CVE-2026-32244)

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