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CVE-2026-30226
Published: Mar 11, 2026
Modified: Mar 12, 2026
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
sveltejs | devalue | affected < 5.6.4 |
Weaknesses (CWE)
References
https://github.com/sveltejs/devalue/security/advisories/GHSA-cfw5-2vxh-hr84
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