Bug 2548454 (CVE-2026-100227) - CVE-2026-100227 org.apache.cxf/cxf-rt-rs-security-xml: Apache CXF: Cryptographic signature verification bypass via unsigned XML wrapping
Summary: CVE-2026-100227 org.apache.cxf/cxf-rt-rs-security-xml: Apache CXF: Cryptograp...
Keywords:
Status: NEW
Alias: CVE-2026-100227
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-09 10:31 UTC by OSIDB Bzimport
Modified: 2026-10-30 13:11 UTC (History)
16 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-09 10:31:22 UTC 
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.
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