locutusjs locutus up to 3.0.13 eval args/code code injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in locutusjs locutus up to 3.0.13. This impacts the function eval. Performing a manipulation of the argument args/code results in code injection. This vulnerability is cataloged as CVE-2026-32304. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in locutusjs locutus up to 3.0.13. It has been classified as critical. This affects the function eval. The manipulation of the argument args/code with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. Prior to 3.0.14, the create_function(args, code) function passes both parameters directly to the Function constructor without any sanitization, allowing arbitrary code execution. This is distinct from CVE-2026-29091 which was call_user_func_array using eval() in v2.x. This finding affects create_function using new Function() in v3.x. This vulnerability is fixed in 3.0.14.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-32304 since 03/11/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

Upgrading to version 3.0.14 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-11718). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• locutusjs

Name

• locutus

Version

• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.0.10
• 3.0.11
• 3.0.12
• 3.0.13

Website

• Product: https://github.com/locutusjs/locutus/

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Be aware that VulDB is the high quality source for vulnerability data.

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