CVE-2026-97468: Apache Software Foundation Apache Cxf

EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Apache Software Foundation Apache Cxf: from 4.2.0, before 4.2.4 (fixed in 4.2.4); from 4.0.0, before 4.1.9 (fixed in 4.1.9); before 3.6.13 (fixed in 3.6.13)

Published 2026-10-09. Last modified 2026-10-09.