Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.0, a remote code execution (RCE) flaw was discovered in the locutus project, specifically within the call_user_func_array function implementation. The vulnerability allows an attacker to inject arbitrary JavaScript code into the application's runtime environment. This issue stems from an insecure implementation of the call_user_func_array function (and its wrapper call_user_func), which fails to properly validate all components of a callback array before passing them to eval(). This issue has been patched in version 3.0.0.
History

Fri, 06 Mar 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 06 Mar 2026 18:00:00 +0000

Type Values Removed Values Added
Description Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to version 3.0.0, a remote code execution (RCE) flaw was discovered in the locutus project, specifically within the call_user_func_array function implementation. The vulnerability allows an attacker to inject arbitrary JavaScript code into the application's runtime environment. This issue stems from an insecure implementation of the call_user_func_array function (and its wrapper call_user_func), which fails to properly validate all components of a callback array before passing them to eval(). This issue has been patched in version 3.0.0.
Title Locutus: Remote Code Execution (RCE) in locutus call_user_func_array due to Code Injection
Weaknesses CWE-95
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-03-06T17:48:10.442Z

Updated: 2026-03-06T18:34:27.477Z

Reserved: 2026-03-03T21:54:06.707Z

Link: CVE-2026-29091

cve-icon Vulnrichment

Updated: 2026-03-06T18:34:17.673Z

cve-icon NVD

Status : Received

Published: 2026-03-06T18:16:20.257

Modified: 2026-03-06T19:16:21.720

Link: CVE-2026-29091

cve-icon Redhat

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