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
History

Wed, 27 Aug 2025 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Svelte
Svelte devalue
Vendors & Products Svelte
Svelte devalue

Wed, 27 Aug 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 26 Aug 2025 22:45:00 +0000

Type Values Removed Values Added
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
Title Svelte devalue vulnerable to prototype pollution
Weaknesses CWE-1321
References
Metrics cvssV4_0

{'score': 7.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2025-08-26T22:33:19.100Z

Updated: 2025-08-27T20:42:46.786Z

Reserved: 2025-08-20T14:30:35.011Z

Link: CVE-2025-57820

cve-icon Vulnrichment

Updated: 2025-08-27T20:42:42.124Z

cve-icon NVD

Status : Received

Published: 2025-08-26T23:15:35.730

Modified: 2025-08-26T23:15:35.730

Link: CVE-2025-57820

cve-icon Redhat

No data.