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High · 8.1 CVE-2026-29091 EUVD-2026-10051GHSA-fp25-p6mj-qqg6

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

Published Mar 6, 2026 · Updated Jul 15, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
locutusjs locutus < 3.0.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm locutus < 3.0.0 3.0.0 GHSA-fp25-p6mj-qqg6

References