Symfony's Cas2Handler Derives CAS service URL from Client Host Header → Cross-Service Ticket Replay

Cas2Handler builds this service parameter from Request::getSchemeAndHttpHost, which reflects the attacker-controlled HTTP Host header whenever Symfony's framework.trustedhosts setting is not configured the default. An attacker who controls any other application registered with the same CAS server...

PT-2026-44143

Cas2Handler builds this service parameter from Request::getSchemeAndHttpHost, which reflects the attacker-controlled HTTP Host header whenever Symfony's framework.trusted hosts setting is not configured the default. An attacker who controls any other application registered with the same CAS serve...

CVE-2026-45074: Cas2Handler Derives CAS service URL from Client Host Header → Cross-Service Ticket Replay

More info at https://symfony.com/cve-2026-45074...