VULNERABILITY INTELLIGENCE

CVE-2026-26979

CVSS score2.7 LOW
EPSS probability0.19%
CISA KEVNot currently listed
Published2026-02-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Description

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, TL4 users are able to close, archive and pin topics in private categories they don't have access to. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

Weakness classification

  • security-advisories@github.com: CWE-862

Primary references