Vulnerability in Apache Software Foundation Apache CXF

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund8 Oct 2026WID-SEC-2026-3824

  Apache CXF: Multiple vulnerabilities Translated from German

  CVE-2026-78384CVE-2026-97791CVE-2026-108039+7 more CVEs

[ References ]References

• lists.apache.org/thread.html/pst2oopnwt2rwhvkvmt5gdgwn36kq05mIssue TrackingVendor AdvisoryMailing List
• www.openwall.com/lists/oss-security/2026/10/09/11Mailing ListThird Party Advisory