Apache CXF up to 4.1.6/4.2.1 JNDI injection

Summaryinfo

A vulnerability has been found in Apache CXF up to 4.1.6/4.2.1 and classified as critical. This affects an unknown part of the component JNDI. This manipulation causes injection. This vulnerability is handled as CVE-2026-50632. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Apache CXF up to 4.1.6/4.2.1 and classified as critical. Affected by this vulnerability is an unknown part of the component JNDI. The manipulation with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A further incomplete fix for a previous advisory CVE-2026-44417 (Untrusted JMS configuration can lead to RCE) for Apache CXF has been identified, which can allow code execution capabilities, if untrusted users are allowed to configure JMS for Apache CXF. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

It is possible to read the advisory at lists.apache.org. This vulnerability is known as CVE-2026-50632. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/02/2026). The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 321189 (Apache CXF < 4.1.7 / 4.2.x < 4.2.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.1.7 or 4.2.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (321189), EUVD (EUVD-2026-36400) and CERT Bund (WID-SEC-2026-1895). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Apache CXF

Productinfo

Type

• Application Server Software

Vendor

• Apache

Name

• CXF

Version

• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.1.5
• 4.1.6
• 4.2.0
• 4.2.1

License

• open-source

Website

• Vendor: https://www.apache.org/

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Be aware that VulDB is the high quality source for vulnerability data.

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