CVE-2026-123568
MEDIUM
NVD
CVSS Score
4.4
Severity
MEDIUM
Published
Nov 08, 2026
Vendor
unknown
Description
Sveltejs devalue before 5.6.3 contains a prototype pollution vulnerability that allows attackers to alter object prototypes by supplying untrusted data to uneval. When the generated code is later evaluated, it creates objects with polluted prototypes, producing output data whose shape differs from the original input.