CVE-2021-29063

high

Description

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.

References

Advisories
More

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS2U6GLXQSRZJE2HVUAUMVFR2DWQLCZG/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EIUX3XWY2K3MSO7QXMZXQQYAURARSPC5/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3M5O55E7VUDMXCPQR6MQTOIFDKHP36AA/

https://github.com/yetingli/SaveResults/blob/main/js/hosted-git-info.js

https://github.com/npm/hosted-git-info/pull/76

https://github.com/fredrik-johansson/mpmath/commit/46d44c3c8f3244017fe1eb102d564eb4ab8ef750

https://github.com/advisories/GHSA-f865-m6cq-j9vx

https://www.npmjs.com/package/hosted-git-info

https://github.com/yetingli/PoCs/blob/main/CVE-2021-29063/Mpmath.md

https://github.com/mpmath/mpmath/releases/tag/1.3.0

https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-0137

Details

Source: Mitre, NVD

Published: 2021-06-21

Updated: 2026-06-17

Named Vulnerability: GHSA-f865-m6cq-j9vx

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

CVSS v4

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.04179