Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-87819

CVE-2026-87819HIGH

gitpython-developers GitPython — GitPython before 3.1.60 Denial of Service via ReDoS

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   N   N   H    8.7   .0052   42.2     —

AFFECTED
  Product    Versions     Fixed
  GitPython  unspecified  3.1.60

TIMELINE
  Sep 9   Reserved by VulnCheck
  Sep 9   Published (CNA: VulnCheck)
  Sep 16  EXPLOIT PUBLISHED — CVE-2026-87819 (gitpython-developers GitPython). Public exploit reference added.
  Sep 18  EXPLOIT PUBLISHED — CVE-2026-87819 (gitpython-developers GitPython). Public exploit reference added.

CWE-1333 · CNA: VulnCheck · CVSS v4.0 · 2 references · NVD 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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
September 9, 2026	Reserved	Reserved by VulnCheck
September 9, 2026	Published	Published (CNA: VulnCheck)
September 16, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-87819 (gitpython-developers GitPython). Public exploit reference added.
September 18, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-87819 (gitpython-developers GitPython). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
gitpython-developers	GitPython	—	—	3.1.60

Weaknesses

CWE-1333

References (2)

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-g5vv-9gxw-82hx [Exploit, Mitigation, Vendor Advisory]
https://www.vulncheck.com/advisories/gitpython-before-3.1.60-denial-of-service-via-redos [Third Party Advisory]

Authoritative record: CVE-2026-87819 at cve.org

Vendors: gitpython-developers

Weaknesses: CWE-1333

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-87819 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.