HIGH 8.7 NVD
CVE-2026-123563
Devalue before 5.9.3 contains a validation bypass vulnerability that allows custom ArrayBuffer revivers to skip typed-array allocation checks in the parse funct
Devalue before 5.9.3 contains a validation bypass vulnerability that allows custom ArrayBuffer revivers to skip typed-array allocation checks in the parse function. Attackers can supply very small crafted input processed by a malformed ArrayBuffer reviver to allocate massive ArrayBuffers, causing memory exhaustion and denial of service.
References
- https://github.com/sveltejs/devalue/security/advisories/GHSA-r9w8-h9r3-54w4
- https://www.vulncheck.com/advisories/devalue-before-5.9.3-typed-array-allocation-validatio
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-11-08 via NVD.
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