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-2026-78677

CVE-2026-78677HIGH

gitpython-developers GitPython — GitPython before 3.1.59 Path Traversal via separate-git-dir

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   N   N    8.7   .0065   49.4     —

AFFECTED
  Product    Versions     Fixed
  GitPython  unspecified  3.1.59

TIMELINE
  Aug 25  Reserved by VulnCheck
  Aug 25  Published (CNA: VulnCheck)
  Sep 2   EXPLOIT PUBLISHED — CVE-2026-78677 (gitpython-developers GitPython). Public exploit reference added.

CWE-22 · CNA: VulnCheck · CVSS v4.0 · 2 references · NVD status: Analyzed

Description

GitPython before 3.1.59 omits --separate-git-dir from unsafe_git_clone_options, allowing attackers to create arbitrary git directories outside the intended clone destination. Attackers can pass a separate_git_dir parameter to Repo.clone_from() or Repo.clone() to redirect repository metadata to an attacker-controlled filesystem path, enabling arbitrary directory creation and potential hook execution.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 25, 2026	Reserved	Reserved by VulnCheck
August 25, 2026	Published	Published (CNA: VulnCheck)
September 2, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-78677 (gitpython-developers GitPython). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
gitpython-developers	GitPython	—	—	3.1.59

Weaknesses

CWE-22

References (2)

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc [Exploit, Vendor Advisory]
https://www.vulncheck.com/advisories/gitpython-before-path-traversal-via-separate-git-dir [Third Party Advisory]

Authoritative record: CVE-2026-78677 at cve.org

Vendors: gitpython-developers

Weaknesses: CWE-22

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-78677 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.