SUSE CVE-2025-12419

Mattermost versions 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12, 11.0.x = 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker with team creation privileges to take over a user account via manipulation of...

CVE-2025-12419

Mattermost contains an OAuth/OpenID Connect validation flaw where OAuth state tokens are not properly validated during authentication, enabling an authenticated attacker with team-creation privileges to take over a user account by manipulating data in the OAuth completion flow. The issue affects ...