CVE-2026-8074GO-2026-6481GHSA-G5VR-6PGG-74QV
Improper Permission Check Allows User Manager to Deactivate Bot Accounts
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 10.11.18+incompatible, 11.7.1+incompatible, 11.7.1, 10.11.18
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
Mattermost versions 11.7.x <= 11.7.0, 10.11.x <= 10.11.17 fail to enforce bot-specific permission checks on the user active status endpoint, which allows a User Manager with user management write access but no Integrations access to deactivate bot accounts via the PUT /api/v4/users/{id}/active API endpoint.. Mattermost Advisory ID: MMSA-2026-00667
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Mattermost Mattermost
From 11.7.0 · through 11.7.0; From 10.11.0 · through 10.11.17
- github.com/mattermost/mattermost-serverGo
From 10.11.0+incompatible · fixed in 10.11.18+incompatible; From 11.7.0+incompatible · fixed in 11.7.1+incompatible
- github.com/mattermost/mattermost-serverGo
From 11.7.0 · fixed in 11.7.1
- github.com/mattermost/mattermost-serverGo
From 10.11.0 · fixed in 10.11.18