{"id":"CVE-2021-29063","aliases":["GHSA-f865-m6cq-j9vx","PYSEC-2021-427"],"url":"https://o3.security/vulnerability/CVE-2021-29063","summary":"ReDOS in Mpmath","details":"A Regular Expression Denial of Service (ReDOS) vulnerability was discovered in Mpmath v1.0.0 through v1.2.1 when the mpmathify function is called.","published":"2021-06-21T20:15:09.477Z","modified":"2026-07-08T06:00:10.199974836Z","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":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"mpmath","fixedVersion":"1.3.0"}],"fix":{"url":"https://github.com/fredrik-johansson/mpmath/commit/46d44c3c8f3244017fe1eb102d564eb4ab8ef750","label":"fredrik-johansson/mpmath@46d44c3"},"references":[{"type":"WEB","url":"https://github.com/mpmath/mpmath/releases/tag/1.3.0"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3M5O55E7VUDMXCPQR6MQTOIFDKHP36AA/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EIUX3XWY2K3MSO7QXMZXQQYAURARSPC5/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS2U6GLXQSRZJE2HVUAUMVFR2DWQLCZG/"},{"type":"WEB","url":"https://www.npmjs.com/package/hosted-git-info"},{"type":"ADVISORY","url":"https://github.com/yetingli/SaveResults/blob/main/js/hosted-git-info.js"},{"type":"FIX","url":"https://github.com/fredrik-johansson/mpmath/commit/46d44c3c8f3244017fe1eb102d564eb4ab8ef750"},{"type":"FIX","url":"https://github.com/npm/hosted-git-info/pull/76"},{"type":"FIX","url":"https://github.com/yetingli/PoCs/blob/main/CVE-2021-29063/Mpmath.md"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:00:10.199974836Z"}}