CVEvulnerability

CVE-2026-4055

4.3 MEDIUM Published 2026-05-21 Modified 2026-07-23 Official page ↗
Status
Analyzed
Published
2026-05-21
Last modified
2026-07-23
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-863

Description

Mattermost versions 11.5.x <= 11.5.1 fail to validate team-level run_create permission against the target team when creating a playbook run which allows an authenticated team member to create runs in teams where they lack permission via specifying a different team ID in the run creation API request. Mattermost Advisory ID: MMSA-2026-00629

Affected configurations

• mattermost mattermost server (>= 10.11.0 < 10.11.17) • mattermost mattermost server (>= 11.5.0 < 11.5.5) • mattermost mattermost server (>= 11.6.0 < 11.6.2)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References