CVE-2026-7521

Mattermost CVE-2026-7521 affects versions 11.8.x up to 11.8.0, 11.7.x up to 11.7.3, 11.6.x up to 11.6.5, and 10.11.x up to 10.11.20. The issue arises from a failure to verify the file deletion path in the remove file endpoint for SAML admin writes, enabling deletion of arbitrary files outside the...

CVE-2026-7521

Mattermost versions 11.8.x = 11.8.0, 11.7.x = 11.7.3, 11.6.x = 11.6.5, 10.11.x = 10.11.20 fail to verify file deletion path which allows an admin with SAML system-console write permissions to delete arbitrary files outside the config directory from the server via the remove file endpoint...