Apache CXF: WS JSON request filter trusts metadata from an unvalidated first signature entry
CVE-2026-50634

Currently unrated

Key Information:

Vendor

Apache
Status
Apache Cxf
Vendor
CVE Published:
12 June 2026

What is CVE-2026-50634?

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.

Affected Version(s)

Apache CXF 4.2.0 < 4.2.2

Apache CXF 0 < 4.1.7

References

https://lists.apache.org/thread/9nfwh9d3m4kznxrk1mz98hl0j...
vendor-advisory

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mitchell Benjamin / Revamp Studio.
.