CVE-2026-32244

Discourse: Cached outdated summaries can leak removed content

State: Published
Severity: 5.3 Medium
Published: May 19, 2026
Updated: May 19, 2026
Reserved: Mar 11, 2026

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 In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries.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

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	GitHub_M

Weaknesses

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

Affected Products

Product	Versions
discoursediscourse	< 2026.1.4Affected >= 2026.3.0-latest, < 2026.3.1Affected >= 2026.4.0-latest, < 2026.4.1Affected >= 2026.5.0-latest, < 2026.5.0-latest.1Affected

References

https://github.com/discourse/discourse/security/advisories/GHSA-hjmg-2mww-vfvx

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