CVE-2025-9076
Mattermost Server exposes sensitive user credentials during shared channel membership synchronization
Summary
Mattermost Server exposes sensitive user credentials during shared channel membership synchronization
Original description
The description as published by the source.
Mattermost versions 10.10.x <= 10.10.1 fail to properly sanitize user data during shared channel membership synchronization, which allows malicious or compromised remote clusters to access sensitive user information via unsanitized user objects. This vulnerability affects Mattermost Server instances with shared channels enabled.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory nvd.nist.gov
- web mattermost.com