VDB
CVE-2026-16045
CVE-2026-16045
PUBLISHED
CVSS 2.7 LOW
Reported by Mattermost · Published August 17, 2026
Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 Mattermost failed to restrict OAuth deauthorization and personal access token management endpoints to direct user sessions, which allowed an OAuth app with a delegated user token to revoke the user's authorizations or tokens for other integrations via account-management endpoints.. Mattermost Advisory ID: MMSA-2026-00704
Risk Scores
CVSS 3.1
2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 11.7.0, 10.11.0, 11.9.0 |
| Mattermost | Mattermost | 11.7.0, 10.11.0, 11.9.0 |
Timeline
- Aug 17, 2026 CVE Published
- Aug 17, 2026 CVE Updated
- Aug 22, 2026 Coalition ESS Score
- Aug 24, 2026 EPSS Score
References
- MMSA-2026-00704 vendor-advisory