CVE-2026-97791
Last modified
CVE-2026-97791 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
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 forged assertion signed with an untrusted certificate while legitimate requests were being processed, and it could be accepted as trusted without ever reaching the STS. Only services that use STSTokenValidator to validate SAML tokens without alwaysValidateToSts set are affected. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache CXF | >= 4.2.0, < 4.2.4; >= 4.0.0, < 4.1.9; < 3.6.13 |
References
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
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