{"id":"CVE-2021-41122","aliases":["GHSA-c7pr-343r-5c46","PYSEC-2021-366"],"url":"https://o3.security/vulnerability/CVE-2021-41122","summary":"missing clamps for decimal args in external functions","details":"Vyper is a Pythonic Smart Contract Language for the EVM. In affected versions external functions did not properly validate the bounds of decimal arguments. The can lead to logic errors. This issue has been resolved in version 0.3.0.","published":"2021-10-05T23:15:07.487Z","modified":"2026-07-09T12:20:18.076937Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"vyper","fixedVersion":"0.3.0"}],"fix":{"url":"https://github.com/vyperlang/vyper/pull/2447","label":"vyperlang/vyper#2447"},"references":[{"type":"ADVISORY","url":"https://github.com/vyperlang/vyper/pull/2447"},{"type":"EVIDENCE","url":"https://github.com/vyperlang/vyper/security/advisories/GHSA-c7pr-343r-5c46"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T12:20:18.076937Z"}}