Vulnerability · Published May 19, 2026 · Assigned by GitHub_M

CVE-2026-32244Discourse: Cached outdated summaries can leak removed content

Medium 5.3

In plain English

A medium-severity information exposure in discourse from discourse. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.2%top 85.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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 In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries.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

Affected products (as reported)

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

Weakness: CWE-524, CWE-200, CWE-672 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

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