CVE-2026-56020

The Webmin HTTP server miniserv.pl allows unauthenticated attackers to impersonate any user with a configured SSL client certificate by sending a forged HTTP header. A remote attacker can spoof certificate DNs and authenticate as any user. Fixed in 2.641...

PT-2026-50711

Name of the Vulnerable Software and Affected Versions Webmin versions prior to 2.641 Description The Webmin HTTP server miniserv.pl improperly trusts a client-supplied HTTP header for SSL client certificate identity. This allows unauthenticated remote attackers to spoof certificate distinguished...