CVSS 3.1
8.1 highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-29091
High (8.1) in locutus locutus. EPSS 0.8% chance of exploitation in the next 30 days. Fixed in locutus 3.0.0.
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.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-95, CWE-94
- Published
- Modified
- Record from
- the NVD, synced
Affected
- locutus:locutus
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-fp25-p6mj-qqg6 | npm | locutus | <3.0.0 | 3.0.0 |
References
- https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500ad
- https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6
- 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-qqg6