{"id":"CVE-2026-114118","revision":"15f2870d8d1c44c58674d6732d8cb6ac","records":[{"revision":"15f2870d8d1c44c58674d6732d8cb6ac","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-114118","aliases":[],"title":"Vyper 0.3.4 through 0.5.0b1 create_from_blueprint Offset Validation Bypass via Unsigned Wraparound","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.","state":0,"publishedAt":"2026-10-21T00:37:15.454+00:00","modifiedAt":"2026-10-21T00:37:15.454+00:00","affected":[{"ecosystem":"Vendor product","name":"vyper","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"vyperlang\",\n                    \"product\": \"vyper\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:pypi/vyper\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0.3.4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"python\",\n                            \"lessThanOrEqual\": \"0.5.0b1\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","score":6.3,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","score":4.8,"severity":"MEDIUM"}],"references":["https://github.com/vyperlang/vyper/security/advisories/GHSA-fxg7-4wqg-c8gh","https://www.vulncheck.com/advisories/vyper-0.3.4-through-0.5-0b1-create-from-blueprint-offset-validation-bypass-via-unsigned-wraparound"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-114118","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-114118","identifiers":["CVE-2026-114118"]},"retained":false,"historicalAffected":[]}],"coverage":[]}