VULNERABILITY INTELLIGENCE

CVE-2025-57820

EPSS probability0.37%
CISA KEVNot currently listed
Published2025-08-26
Last modified2026-06-17

Description

Svelte devalue is a utility library. Prior to version 5.3.2, a string passed to devalue.parse could represent an object with a __proto__ property and devalue.parse does not check that an index is numeric. This could result in assigning prototypes to objects and properties, leading to prototype pollution. This issue has been fixed in version 5.3.2

Weakness classification

  • security-advisories@github.com: CWE-1321

Primary references