CVE-2026-30226

HIGH

7.5

Description

Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. In devalue v5.6.3 and earlier, devalue.parse and devalue.unflatten were susceptible to prototype pollution via maliciously crafted payloads. Successful exploitation could lead to Denial of Service (DoS) or type confusion. This vulnerability is fixed in 5.6.4.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/11/2026

Derniere modification3/17/2026

Sourcenvd

Observations honeypot0

Produits affectes

svelte:devalue

Faiblesses (CWE)

CWE-1321

References

https://github.com/sveltejs/devalue/security/advisories/GHSA-cfw5-2vxh-hr84(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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