CVE-2026-50634

MEDIUM

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

Title source: cna

Description

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.

References (2)

Core 2

Core References

Mailing List

http://www.openwall.com/lists/oss-security/2026/06/11/11

Vendor Advisory vendor-advisory

https://lists.apache.org/thread/9nfwh9d3m4kznxrk1mz98hl0jml18k0p

Scores

CVSS v3 6.5

EPSS 0.0030

EPSS Percentile 21.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-347

Status published

Products (3)

apache/cxf < 4.1.7

Apache Software Foundation/Apache CXF < 4.1.7

Apache Software Foundation/Apache CXF 4.2.0 - 4.2.2

Published Jun 12, 2026

Tracked Since Jun 12, 2026