{"id":"CVE-2026-123563","published":"2026-11-08T02:16:48.720","lastModified":"2026-11-08T02:16:48.720","description":"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.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-789"],"vendors":[],"products":[],"references":[{"url":"https://github.com/sveltejs/devalue/security/advisories/GHSA-r9w8-h9r3-54w4","tags":[]},{"url":"https://www.vulncheck.com/advisories/devalue-before-5.9.3-typed-array-allocation-validation-bypass-via-parse","tags":[]}],"exploitRefs":[{"url":"https://github.com/sveltejs/devalue/security/advisories/GHSA-r9w8-h9r3-54w4","tags":[]}],"hasPoc":true,"ai":null}