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

INFO

Published Date :

2025-08-26T22:33:19.100Z

Last Modified :

2025-08-27T20:42:46.786Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-57820 vulnerability.

Vendors Products
Svelte
  • Devalue
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-57820.

URL Resource
https://github.com/sveltejs/devalue/commit/0623a47c9555b639c03ff1baea82951b2d9d1132 cve-icon cve-icon
https://github.com/sveltejs/devalue/security/advisories/GHSA-vj54-72f3-p5jv cve-icon cve-icon
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