CVE-2025-24866: Unauthorized Access to User Activity Logs API by delegated granular administration roles
First published: Thu Apr 10 2025(Updated: )
Mattermost versions 9.11.x <= 9.11.8 fail to enforce proper access controls on the /api/v4/audits endpoint, allowing users with delegated granular administration roles who lack access to Compliance Monitoring to retrieve User Activity Logs.
Credit: responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | <=9.11.8 | |
| go/github.com/mattermost/mattermost/server/v8 | >=9.11.0<9.11.9 | 9.11.9 |
| go/github.com/mattermost/mattermost/server/v8 | <8.0.0-20250204211032-f52e08754c49 | 8.0.0-20250204211032-f52e08754c49 |
Remedy
Update Mattermost to versions 10.5.0, 9.11.9 or higher.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-24866?
CVE-2025-24866 has been rated as a critical severity vulnerability due to improper access controls.
How do I fix CVE-2025-24866?
To fix CVE-2025-24866, upgrade Mattermost to version 9.11.9 or later to ensure proper access controls are enforced.
Which versions are affected by CVE-2025-24866?
CVE-2025-24866 affects Mattermost versions 9.11.x up to and including 9.11.8.
What are the risks associated with CVE-2025-24866?
The risks associated with CVE-2025-24866 include unauthorized access to sensitive User Activity Logs by users with insufficient permissions.
Is there a workaround for CVE-2025-24866?
There are no official workarounds for CVE-2025-24866; the only mitigation is to upgrade to a patched version.
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