Improper Input Sanitization

github.com/mattermost/mattermost-server is vulnerable to improper input sanitization. The vulnerability is due to insufficient sanitization of user data during shared channel membership synchronization, which allows an attacker from a malicious or compromised remote cluster to access sensitive us...

SUSE CVE-2025-9076

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 instanc...

CVE-2025-9076 Mattermost Server exposes sensitive user credentials during shared channel membership synchronization

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 instanc...

CVE-2025-9076 Mattermost Server exposes sensitive user credentials during shared channel membership synchronization

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 instanc...