CVE-2026-83542
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Code Injection Vulnerability in Apache OFBiz

Publication date: 2026-11-05

Last updated on: 2026-11-05

Assigner: Apache Software Foundation

Description
Improper Control of Generation of Code ('Code Injection') in Apache OFBiz 24.09 before 24.09.08 on all platforms allows a remote unauthenticated attacker to execute arbitrary code on the server by staging crafted widget XML in a multipart upload and overriding the mainDecoratorLocation used by a manager login route through an anonymous JSON request, causing OFBiz to load the staged XML through its live screen descriptor mechanism and evaluate an unsandboxed Groovy expression while rendering the authentication-failure page. Further validation established the following: -- The exploit does not require a malformed or incomplete multipart body: a well-formed multipart request that is kept in flight and then allowed to complete normally is sufficient. -- The screen loader reads the widget XML from a live process file descriptor while the upload is streaming, rather than from any file the attacker persists to disk. -- The same underlying issue is also reachable through the public, explicitly unauthenticated /sfa/control/editPortalPageColumnWidth route, returning command output directly in an HTTP 200 response — it is not limited to the login-failure rendering path used in the original report. Users are recommended to upgrade to version 24.09.08, which fixes this issue.

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Meta Information

Published
2026-11-05
Last Modified
2026-11-05
Generated
2026-11-05
AI Q&A
2026-11-05
EPSS Evaluated
N/A
NVD
CVE-2026-83542
EUVD
EUVD-2026-117470

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Apache Software Foundation Apache OFBiz 0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

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Executive Summary

This is a code injection vulnerability in Apache OFBiz 24.09 before 24.09.08. A remote unauthenticated attacker can execute arbitrary code on the server by uploading crafted widget XML in a multipart request and manipulating the mainDecoratorLocation parameter. The vulnerability occurs because OFBiz loads and evaluates unsandboxed Groovy expressions from the uploaded XML during screen rendering.

Impact Analysis

An attacker could gain full control of the server, steal sensitive data, install malware, or disrupt services. The exploit works without requiring malformed requests or file persistence, making it highly dangerous. Even well-formed uploads can be weaponized if kept in flight.

Compliance Impact

This vulnerability likely violates compliance requirements for data protection and security, such as GDPR's integrity principle or HIPAA's security rule. Unauthorized code execution could lead to data breaches, unauthorized access, or loss of data integrity, triggering regulatory penalties and legal consequences.

Mitigation Strategies

Immediately upgrade Apache OFBiz to version 24.09.08 or later to address the code injection vulnerability. Ensure no unauthenticated access is permitted to routes like /sfa/control/editPortalPageColumnWidth and monitor for suspicious multipart uploads.

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