{"id":"CVE-2026-114663","published":"2026-10-22T02:16:58.603","lastModified":"2026-10-23T15:17:27.677","description":"Vyper 0.4.0b1 through 0.5.0b1 miscompiles unfoldable constants and omitted default arguments from imported modules, because parse_Name resolves their names in the using function's scope rather than at declaration. When a contract's parameter, local, or loop variable shares such a name, attacker-influenced input can replace the intended value, including out-of-range values for narrow types such as uint8, corrupting validation or accounting logic.","cvssScore":8.4,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-706"],"vendors":[],"products":[],"references":[{"url":"https://github.com/vyperlang/vyper/security/advisories/GHSA-2489-32vh-8rrc","tags":[]},{"url":"https://www.vulncheck.com/advisories/vyper-0.4-0b1-through-0.5-0b1-name-shadowing-of-imported-constants-and-default-arguments","tags":[]}],"exploitRefs":[{"url":"https://github.com/vyperlang/vyper/security/advisories/GHSA-2489-32vh-8rrc","tags":[]}],"hasPoc":true,"ai":null}