2026-03-11 17:47:40
GitHub_M
PUBLISHED
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.