CVE-2026-50634 PUBLISHED

Apache CXF: WS JSON request filter trusts metadata from an unvalidated first signature entry

Assigner: apache
Reserved: 05.06.2026 Published: 12.06.2026 Updated: 12.06.2026

A vulnerability in Apache CXF's JwsJsonContainerRequestFilter can be exploited to cause CXF to process metadata that was not authenticated by the accepted signature. This can bypass the application's assumption

that accepted Content-Type or protected HTTP-header metadata came from a verified signature entry, and may steer downstream JAX-RS entity parsing or signed-header consistency checks. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fix this issue.

Product Status

Vendor Apache Software Foundation
Product Apache CXF
Versions Default: unaffected
  • affected from 4.2.0 to 4.2.2 (excl.)
  • affected from 0 to 4.1.7 (excl.)

Credits

  • Mitchell Benjamin / Revamp Studio. finder

References

Problem Types

  • CWE-347 Improper Verification of Cryptographic Signature CWE