{"id":"CVE-2026-114118","published":"2026-10-21T01:17:38.213","lastModified":"2026-10-22T17:00:33.203","description":"Vyper 0.3.4 through 0.5.0b1 computes the remaining blueprint size in create_from_blueprint by uint256 subtraction without first checking that code_offset is below the blueprint's code size, so a huge offset wraps to a small positive value. An attacker controlling code_offset can make a factory deploy contracts with no runtime code, potentially trapping ETH and tokens.","cvssScore":4.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","cwes":["CWE-681"],"vendors":[],"products":[],"references":[{"url":"https://github.com/vyperlang/vyper/security/advisories/GHSA-fxg7-4wqg-c8gh","tags":[]},{"url":"https://www.vulncheck.com/advisories/vyper-0.3.4-through-0.5-0b1-create-from-blueprint-offset-validation-bypass-via-unsigned-wraparound","tags":[]}],"exploitRefs":[{"url":"https://github.com/vyperlang/vyper/security/advisories/GHSA-fxg7-4wqg-c8gh","tags":[]}],"hasPoc":true,"ai":null}