{"cve":"CVE-2026-87819","nvd":{"published":"2026-09-09T12:17:17.120","modified":"2026-09-18T18:17:34.697","status":"Analyzed","description":"GitPython before 3.1.60 contains a regular expression denial of service vulnerability in Actor.name_email_regex that processes commit author and committer fields. Attackers can craft a commit object with a malformed author field containing an unterminated angle bracket to cause quadratic backtracking, exhausting CPU resources for over two minutes per commit access.","cvss_v4":{"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","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-1333"],"references":["https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-g5vv-9gxw-82hx","https://www.vulncheck.com/advisories/gitpython-before-3.1.60-denial-of-service-via-redos"],"products":["gitpython_project:gitpython"],"source":"nvd","synced_at":"2026-10-19T22:52:53.108888569+00:00"},"epss":{"cve":"CVE-2026-87819","score":0.00521,"percentile":0.4426,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-g5vv-9gxw-82hx","url":"https://osv.dev/vulnerability/GHSA-g5vv-9gxw-82hx","summary":"GitPython: Denial of Service via catastrophic backtracking (ReDoS) in Actor.name_email_regex — commit author/committer field parsing","modified":"2026-09-30T23:45:04.037560336Z","packages":[{"ecosystem":"PyPI","name":"gitpython","purl":"pkg:pypi/gitpython","ranges":["<3.1.60"],"fixed":["3.1.60"]}]},{"id":"PYSEC-2026-3984","url":"https://osv.dev/vulnerability/PYSEC-2026-3984","summary":"","modified":"2026-09-17T09:00:03.352876639Z","packages":[{"ecosystem":"PyPI","name":"gitpython","purl":"pkg:pypi/gitpython","ranges":["<3.1.60"],"fixed":["3.1.60"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}