{"id":"CVE-2020-15899","aliases":["GHSA-p75g-gcv5-42qg"],"url":"https://o3.security/vulnerability/CVE-2020-15899","summary":"Grin insufficient data validation","details":"Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.","published":"2020-07-28T18:15:20.787Z","modified":"2026-07-08T20:58:39.790476Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00754,"percentile":0.51935,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"crates.io","name":"grin","fixedVersion":"4.0.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/mimblewimble/grin/compare/v3.1.1...v4.0.0"},{"type":"FIX","url":"https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-15899.md"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T20:58:39.790476Z"}}