Vulnerabilities in pkg:maven/org.apache.cxf/cxf-rt-rs-security-jose-jaxrs

PACKAGE
Advisory Identifier: GHSA-33j8-j763-4fv5
Share
Advisory Summary

CVE-2026-50634 is a MODERATE (CVSS 6.5) ws json request filter trusts vulnerability (CWE-347: Improper Verification of Cryptographic Signature) affecting Apache CXF libraries in the Maven ecosystem. The issue involves ws json request filter trusts metadata from an unvalidated first signature entry. Remediation is available by upgrading affected packages to version 4.2.2, 4.1.7.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/org.apache.cxf/cxf-rt-rs-security-jose-jaxrs

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/org.apache.cxf/cxf-rt-rs-security-jose-jaxrs. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-33j8-j763-4fv5 CVE-2026-50634 MODERATE Apache CXF: WS JSON request filter trusts metadata from an unvalidated first signature entry

CVE-2026-50634 at a Glance

CVE Identifier CVE-2026-50634
GHSA Identifier GHSA-33j8-j763-4fv5
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-347: Improper Verification of Cryptographic Signature
Affected Product Apache CXF
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-50634

To remediate this vulnerability, upgrade all affected Apache CXF dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.cxf:cxf-rt-rs-security-jose-jaxrs fixed: 4.2.2 
<dependency>
    <groupId>org.apache.cxf</groupId>
    <artifactId>cxf-rt-rs-security-jose-jaxrs</artifactId>
    <version>4.2.2</version>
</dependency>
org.apache.cxf:cxf-rt-rs-security-jose-jaxrs fixed: 4.1.7 
<dependency>
    <groupId>org.apache.cxf</groupId>
    <artifactId>cxf-rt-rs-security-jose-jaxrs</artifactId>
    <version>4.1.7</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.cxf

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-50634, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.cxf

Analyze the terminal output to locate any version of Apache CXF in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.2.2), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.cxf command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-347: Improper Verification of Cryptographic Signature, where the product does not verify, or incorrectly verifies, the cryptographic signature for data. In Apache CXF, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-50634 Affected Apache CXF Versions

2 component(s)
Fixed Versions:
4.2.24.1.7
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.cxf:cxf-rt-rs-security-jose-jaxrs
maven/org.apache.cxf/cxf-rt-rs-security-jose-jaxrs
Maven
≥ 4.2.0
< 4.2.2
4.2.2
org.apache.cxf:cxf-rt-rs-security-jose-jaxrs
maven/org.apache.cxf/cxf-rt-rs-security-jose-jaxrs
Maven
< 4.1.7
4.1.7

References

NVD — CVE-2026-50634 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-50634
Apache CXF Source Repository REPOSITORY
https://github.com/apache/cxf
lists.apache.org/thread/9nfwh9d3m4kz... WEB
https://lists.apache.org/thread/9nfwh9d3m4kznxrk1mz98hl0jml18k0p
Apache CXF Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/06/11/11

Frequently Asked Questions

What is CVE-2026-50634?
CVE-2026-50634 is a security vulnerability in Apache CXF involving WS JSON request filter trusts metadata from an unvalidated first signature entry under CWE-347: Improper Verification of Cryptographic Signature.
Which Apache CXF versions are affected?
Affected versions include releases prior to 4.2.2, 4.1.7 across affected packages: org.apache.cxf:cxf-rt-rs-security-jose-jaxrs.
What version fixes CVE-2026-50634?
Upgrading to 4.2.2, 4.1.7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is cxf-rt-rs-security-jose-jaxrs affected?
Yes, org.apache.cxf:cxf-rt-rs-security-jose-jaxrs is affected in releases prior to 4.2.2, 4.1.7. Upgrade your dependency to 4.2.2, 4.1.7 or later.
What is the CVSS score of CVE-2026-50634?
CVE-2026-50634 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2026-50634?
CVE-2026-50634 is classified under CWE-347: Improper Verification of Cryptographic Signature (The product does not verify, or incorrectly verifies, the cryptographic signature for data.).
How can I check Maven dependencies for CVE-2026-50634?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.cxf'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-33j8-j763-4fv5",
  "modified" : "2026-08-20T18:33:04Z",
  "published" : "2026-06-12T12:31:34Z",
  "aliases" : [ "CVE-2026-50634" ],
  "summary" : "Apache CXF: WS JSON request filter trusts metadata from an unvalidated first signature entry",
  "details" : "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-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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.cxf:cxf-rt-rs-security-jose-jaxrs"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.2.0"
      }, {
        "fixed" : "4.2.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.cxf:cxf-rt-rs-security-jose-jaxrs"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.1.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-50634"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/cxf"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/9nfwh9d3m4kznxrk1mz98hl0jml18k0p"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/06/11/11"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-347" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-20T18:33:04Z",
    "nvd_published_at" : "2026-06-12T10:16:23Z"
  }
}