Apache CXF up to 4.1.6/4.2.1 JNDI DispatchMDBMessageListenerImpl injection

Summaryinfo

A vulnerability was found in Apache CXF up to 4.1.6/4.2.1 and classified as critical. This vulnerability affects the function DispatchMDBMessageListenerImpl of the component JNDI Handler. Such manipulation leads to injection. This vulnerability is uniquely identified as CVE-2026-50633. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache CXF up to 4.1.6/4.2.1 and classified as critical. Affected by this issue is the function DispatchMDBMessageListenerImpl of the component JNDI Handler. The manipulation with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A JNDI Injection vulnerability has been discovered in Apache CXF's JCA integration module, which can allow for code execution, if an attacker is able to manipulate the JCA deployment descriptor (ra.xml) or runtime activation parameters. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

The advisory is shared for download at lists.apache.org. This vulnerability is handled as CVE-2026-50633. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/03/2026). The MITRE ATT&CK project declares the attack technique as T1055.

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 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (321189), EUVD (EUVD-2026-36401) and CERT Bund (WID-SEC-2026-1895). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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/

CPE 2.3info

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CPE 2.2info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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