CVE-2026-6343

MEDIUM CVSS 4.3 View on NVD ↗

Description

Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to check public/private permissions which allows members without these permissions to access public playbooks via /get.. Mattermost Advisory ID: MMSA-2026-00591

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Products

mattermost/mattermost_server

References

https://mattermost.com/security-updates

Published: May 18, 2026 09:16 UTC Modified: May 18, 2026 19:06 UTC