HIGH

CVE-2026-29091

Locutus: Remote Code Execution (RCE) in locutus call_user_func_array due to Code Injection

CVSS v3

8.1

HIGH

EPSS Score

1.0 %

exploit probability, as of 2026-10-03

CISA KEV

known exploited

Exploitation

poc

SSVC status

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), w

Technical details

Published: 2026-03-06
Last Modified: 2026-03-13

Frequently asked questions

What is CVE-2026-29091?

Is CVE-2026-29091 actively exploited?

A proof-of-concept exploit exists for CVE-2026-29091, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-29091?

CVE-2026-29091 has a CVSS v3 base score of 8.1 (HIGH severity).

Is CVE-2026-29091 affecting your environment?

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