CVE-2026-27935

Description

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a vulnerability in an API endpoint that discloses private topic metadata of admin users to moderator users even if the moderators do not have access to the private topics. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

PUBLISHED Reserved 2026-02-25 | Published 2026-03-19 | Updated 2026-03-20 | Assigner GitHub_M

Problem types

CWE-201: Insertion of Sensitive Information Into Sent Data

Product status

References

github.com/...course/security/advisories/GHSA-wxqr-r4wv-cw76

github.com/...ommit/c0f6e9a903800de0dda65c114418ae703d8a51fc

github.com/...ommit/d8dbb4cb189cded8c9e8b3ada859fc0db3f41897

github.com/...ommit/f37e4fdf8391e4a54f1885a3a5514d390eb28bab

cve.org (CVE-2026-27935)

nvd.nist.gov (CVE-2026-27935)

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