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CVE

CVE-2026-29091

Locutus: Remote Code Execution (RCE) in locutus call_user_func_array due to Code Injection
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CVE

CVE-2026-29091

Locutus: Remote Code Execution (RCE) in locutus call_user_func_array due to Code Injection

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 calluserfuncarray 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 calluserfuncarray function (and its wrapper calluserfunc), 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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.1
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
8.1
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29091.json, https://github.com/locutusjs/locutus/security/advisories/GHSA-fp25-p6mj-qqg6, https://nvd.nist.gov/vuln/detail/CVE-2026-29091, https://github.com/locutusjs/locutus/commit/977a1fb169441e35996a1d2465b512322de500ad

Severity

8.1

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.1
EPSS Probability
0.00506%
EPSS Percentile
0.66655%
Introduced Version
0
Fix Available
e583ac4cd99c28ef6419fe4e6461fa331576b0a2

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