Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization via the schemeadmin flag in group syncable link and patch endpoints. An attacker can gain unauthorized administrative privileges by sending crafted API requests. Remediation Upgrade...

CVE-2026-7387

Mattermost CVE-2026-7387 affects multiple release lines (11.6.x up to 11.6.1, 11.5.x up to 11.5.4, 10.11.x up to 10.11.15/16). The root cause is that group-syncable link and patch endpoints do not require role-management authorization when setting the scheme_admin flag, enabling a user with group...