p PatchFirst

CVE-2025-57820

CVE-2025-57820 · Svelte devalue vulnerable to prototype pollution

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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

CVSS 7.9 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • devalue

    Versions
    • < 5.3.2: Affected

    No fix published

  • devalue npm

    Affected ranges
    • SEMVER: < 5.3.2

    Update to 5.3.2

Original sources

Check your server →