VULNERABILITY INTELLIGENCE

CVE-2026-1629

CVSS score4.3 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2026-03-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Description

Mattermost versions 10.11.x <= 10.11.10 Fail to invalidate cached permalink preview data when a user loses channel access which allows the user to continue viewing private channel content via previously cached permalink previews until cache reset or relogin.. Mattermost Advisory ID: MMSA-2026-00580

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-672

Primary references