{"id":"CVE-2026-29091","aliases":["GHSA-fp25-p6mj-qqg6"],"url":"https://o3.security/vulnerability/CVE-2026-29091","summary":"Locutus: Remote Code Execution (RCE) in locutus call_user_func_array due to Code Injection","details":"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.","published":"2026-03-06T17:48:10.442Z","modified":"2026-07-16T03:31:17.103480864Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"locutus","fixedVersion":"3.0.0"}],"fix":{"url":"https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500ad","label":"locutusjs/locutus@977a1fb"},"references":[{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29091.json"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-29091"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29091.json"},{"type":"ADVISORY","url":"https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29091"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2445262"},{"type":"FIX","url":"https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500ad"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-16T03:31:17.103480864Z"}}