CVE-2026-97468Apache CXF: Authentication bypass via weak cache keys for validated STS tokens

Descripción

Apache CXF's STSTokenValidator and Security Token Service (STS) cached validated security tokens under a non-cryptographic 32-bit hash of the token (Java Arrays.hashCode/hashCode()), and treated a cache hit as proof that the presented token had already been validated. An attacker could craft a token (for example a UsernameToken or a self-signed SAML Assertion) whose hash collides with a cached entry. The token would then be accepted without password validation, signature trust verification or a call to the STS. This could let the attacker authenticate as another user and, through STS token validation or renewal, obtain STS-signed tokens for that identity. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://lists.apache.org/thread.html/qthbnsyhqsxhl9p2h9v5dg4mnwv1b9r6 vendor-advisoryIssue TrackingVendor Advisory
• http://www.openwall.com/lists/oss-security/2026/10/09/9 Mailing ListThird Party Advisory