CVE-2026-100227
Last modified
CVE-2026-100227 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Improper Verification of Cryptographic Signature vulnerability in Apache CXF's JAX-RS XML Security module. The JAX-RS XML Signature interceptors (XmlSigInHandler, XmlSigInInterceptor and the streaming XmlSecInInterceptor) did not ensure that the XML passed to the application was covered by the signature. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
Improper Verification of Cryptographic Signature vulnerability in Apache CXF's JAX-RS XML Security module. The JAX-RS XML Signature interceptors (XmlSigInHandler, XmlSigInInterceptor and the streaming XmlSecInInterceptor) did not ensure that the XML passed to the application was covered by the signature. An attacker with any document signed by a trusted key could wrap it in unsigned content, which the application would then treat as signed. 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
| Vendor | Product | Versions |
|---|---|---|
| Apache | Cxf | < 3.6.13 |
| Apache | Cxf | >= 4.0.0, < 4.1.9 |
| Apache | Cxf | >= 4.2.0, < 4.2.4 |
References
- https://lists.apache.org/thread.html/pst2oopnwt2rwhvkvmt5gdgwn36kq05mIssue Tracking, Vendor Advisory, Mailing List
- https://www.openwall.com/lists/oss-security/2026/10/09/11Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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