CVEvulnerability

CVE-2026-9812

6.5 MEDIUM Published 2026-09-14 Modified 2026-10-06 Official page ↗
Status
Analyzed
Published
2026-09-14
Last modified
2026-10-06
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-639

Description

Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to validate that a property field belongs to the specified run before updating its value which allows an authenticated user with run property-management access to crash the Playbooks plugin via a REST request referencing a property field that belongs to a different run. Mattermost Advisory ID: MMSA-2026-00684

Affected configurations

• mattermost mattermost server (>= 10.11.0 < 10.11.23) • mattermost mattermost server (>= 11.7.0 < 11.7.8) • mattermost mattermost server (>= 11.8.0 < 11.8.5) • mattermost mattermost server (>= 11.9.0 < 11.9.1)

Related

Weakness · CWE (1)

  • CWE-639 Authorization Bypass Through User-Controlled Key weakness

References