{"id":"CVE-2026-114116","revision":null,"records":[{"revision":"75f64ed6f09c4661bcb1e30db849d718","observedAt":"2026-10-28T14:46:48.769+00:00","statement":{"source":"cve-program","id":"CVE-2026-114116","aliases":[],"title":"Vyper through 0.5.0b1 Literal Value Manipulation via Line Separators","description":"Vyper 0.1.0b1 before 0.1.0b17 and 0.4.1 through 0.5.0b1 builds its source-line table with str.splitlines(), which treats characters like form feed and U+2028 as line breaks the Python parser ignores, so numeric literals are classified and validated from shifted source text. An attacker contributing source code can hide these characters in comments, strings or indentation to silently change address, integer or decimal constants.","state":0,"publishedAt":"2026-10-21T00:37:13.988+00:00","modifiedAt":"2026-10-28T13:48:11.399+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\": \"0.1.0b1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"python\",\n                            \"lessThan\": \"0.1.0b17\"\n                        },\n                        {\n                            \"version\": \"0.1.0b17\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"python\"\n                        }\n                    ]\n                }"},{"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\": \"0.4.1\",\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:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":6,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/vyperlang/vyper/security/advisories/GHSA-wvx7-39qj-2g9v","https://www.vulncheck.com/advisories/vyper-through-0.5-0b1-literal-value-manipulation-via-line-separators"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-114116","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-114116","identifiers":["CVE-2026-114116"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-10-31T06:57:38.3088666+00:00","complete":true,"records":1094,"lastAttemptAt":"2026-10-31T06:57:38.3088666+00:00","lastSuccessAt":"2026-10-31T06:57:38.6628702+00:00","error":null,"lastVerifiedAt":"2026-10-31T06:57:38.662871+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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