CVEvulnerability

CVE-2026-9693

3.5 LOW Published 2026-08-17 Modified 2026-08-19 Official page ↗
Status
Analyzed
Published
2026-08-17
Last modified
2026-08-19
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.5 LOW — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Weaknesses
CWE-459

Description

Mattermost versions 10.11.x <= 10.11.20, 11.7.x <= 11.7.5 Mattermost fails to remove thread membership records when a user is removed from or leaves a team, which allows a previously removed user who is later re-invited to the team to view private channel thread root post content and metadata via the team threads API.. Mattermost Advisory ID: MMSA-2026-00682

Affected configurations

• mattermost mattermost server (>= 10.11.0 < 10.11.21) • mattermost mattermost server (>= 11.7.0 < 11.7.6)

Related

Weakness · CWE (1)

  • CWE-459 Incomplete Cleanup weakness

References