What’s Vulnerable › Vulnerabilities

CVE-2026-32304: Locutus: RCE via unsanitized input in create_function()

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-13 · updated 2026-07-15
• Weakness: CWE-94

Description

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.

Affected products

• locutusjs locutus: before 3.0.14 — fixed in 3.0.14

How to fix

Upgrade to a fixed version: locutusjs locutus 3.0.14. Check the vendor advisory for mitigations.

References

• https://github.com/locutusjs/locutus/releases/tag/v3.0.14
• https://github.com/locutusjs/locutus/security/advisories/GHSA-vh9h-29pq-r5m8
• https://access.redhat.com/security/cve/CVE-2026-32304
• https://bugzilla.redhat.com/show_bug.cgi?id=2447200
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32304.json

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