CVE-2026-97791 Apache CXF: STSTokenValidator can accept untrusted SAML assertions because it shares validation state between requests

In Apache CXF, STSTokenValidator checks whether a SAML assertion is signed by a trusted certificate before deciding to send it to the STS. That result was stored in one object shared by all requests, so one request could read another's result. A remote, unauthenticated attacker could send a forge...