CVE-2023-50044

CRITICAL 9.8CVE-2023-50044 · Published 20/12/2023 · updated 17/06/2026

In short

CVE-2023-50044 is a CRITICAL (CVSS 9.8) vulnerability affecting mjs (cesanta).
Chance of exploitation in the next 30 days (EPSS): 0.86%, higher than 58.5% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
mjs cesanta	`= 2.22.0`	No fix yet

Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API name occurs in a substring of an input string.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.