CVE-2026-97791 Details
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
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/10/09/10 | CVE | Mailing ListThird Party Advisory |
| https://lists.apache.org/thread.html/ssdr417qgms9fjl0m8802xd8170wnk1l | [email protected] | Issue TrackingVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-362 | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apache cxf | < 3.6.13 >= 4.0.0, < 4.1.9 >= 4.2.0, < 4.2.4 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 20, 2026 | Initial Analysis | [email protected] |
| Oct 15, 2026 | CVE Modified | CISA-ADP |
| Oct 9, 2026 | CVE Modified | CVE |
| Oct 9, 2026 | New CVE Received | [email protected] |