{"id":"CVE-2026-87819","title":"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","summary":"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 containi…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-1333"],"vendor":"gitpython_project","product":"gitpython","affected":["gitpython < 3.1.60"],"patched":["gitpython 3.1.60"],"published":"2026-09-09","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:34.697","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-87819","references":[{"url":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-g5vv-9gxw-82hx","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/gitpython-before-3.1.60-denial-of-service-via-redos","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","osv","pip"],"epss":0.00295,"epssPercentile":0.2228,"aliases":["PYSEC-2026-3984","GHSA-g5vv-9gxw-82hx"],"ecosystem":"pip","ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-18T17:09:07.925027Z"},"ingestedAt":"2026-09-09T12:08:31.841Z","slug":"CVE-2026-87819","body":"## Overview\n\nGitPython 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.\n\n## Affected\n\n- `gitpython < 3.1.60`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `gitpython 3.1.60`\n\n## Package advisory (CVE-2026-87819)\n\nAffected packages:\n\n- `gitpython < 3.1.60`\n\nPatched in:\n\n- `gitpython 3.1.60`\n\nSource: https://osv.dev/vulnerability/PYSEC-2026-3984","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}