CVE-2026-97468 (GCVE-0-2026-97468)
Vulnerability from cvelistv5 – Published: 2026-10-09 10:18 – Updated: 2026-10-15 16:28
VLAI
EPSS
VEX
Title
Apache CXF: Authentication bypass via weak cache keys for validated STS tokens
Summary
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.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 16:28 UTC
CWE
- CWE-328 - Use of Weak Hash
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Apache Software Foundation | Apache CXF |
Affected:
4.2.0 , < 4.2.4
(semver)
Affected: 4.0.0 , < 4.1.9 (semver) Affected: 0 , < 3.6.13 (semver) |
guessed |
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