---
id: CVE-2026-50634
title: "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\n\nthat accepted `Content-Ty…"
summary: "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\n\nthat accepted `Content-Ty…"
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-347
vendor: apache
product: cxf
affected:
  - cxf < 4.1.7
  - 'cxf >= 4.2.0, < 4.2.2'
patched:
  - cxf 4.2.2
published: '2026-06-12'
updated: '2026-08-07'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-50634'
references:
  - url: 'https://lists.apache.org/thread/9nfwh9d3m4kznxrk1mz98hl0jml18k0p'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/06/11/11'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.0036
epssPercentile: 0.2717
ingestedAt: '2026-08-07T14:14:17.571Z'
---

## Overview

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 or 3.6.12, which fix this issue.

## Affected

- `cxf < 4.1.7`
- `cxf >= 4.2.0, < 4.2.2`

## Remediation

Upgrade past the affected range:

- `cxf 4.2.2`