Security Advisory

CVE-2026-30226

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-11 17:47:40

Last updated 2026-03-12 13:51:34

Assigner GitHub_M

State PUBLISHED

Description

Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isnt 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.

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