CVE-2026-29091

HIGH 8.1

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

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-95
Vendor	locutusjs
Product	locutus
Published	Mar 6, 2026
Last Updated	Mar 6, 2026

Stay Ahead of the Next One

Get instant alerts for locutusjs locutus

Be the first to know when new high vulnerabilities affecting locutusjs locutus are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

locutusjs / locutus

< 3.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6 github.com: https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500ad