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.
Metrics
CVSS 3.1 8.1/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| locutusjs | locutus | < 3.0.0 |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
References
- https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500adPatch
- https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6Exploit, Mitigation, Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-29091
- https://bugzilla.redhat.com/show_bug.cgi?id=2445262
- https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6Exploit, Mitigation, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29091.json
Timeline
- Published
- Mar 6, 2026
- Last modified
- Jul 15, 2026
- NVD status
- Modified