CVE-2026-78677: GitPython before 3.1.59 omits --separate-git-dir from unsafe_git_clone_options, allowing attackers to create a

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HIGH 7.5REMOTEUPGRADE

CVE-2026-78677 is a high-severity flaw (CVSS 7.5) affecting gitpython. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-08-25
Last modified	2026-10-12

Publisher (CNA): VulnCheck · Vendor: gitpython project

Last updated 2026-10-12 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-25 02:16 UTCPublished CVE record published
2026-10-12 15:10 UTCUpdated Record last modified

gitpython project gitpython UPGRADE

Affected: < 3.1.59

Fixed in: 3.1.59

Safe to downgrade to: no unaffected older release

1. Check installed version

pip show gitpython

2. UPGRADE to 3.1.59

pip install --upgrade "gitpython>=3.1.59"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-78677?

gitpython: upgrade to 3.1.59. Exact commands for each OS are on this page.

Is CVE-2026-78677 being exploited?

CVE-2026-78677 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-78677 affect?

CVE-2026-78677 affects gitpython. Severity is high (CVSS 7.5). 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_fro

How urgent is CVE-2026-78677?

Priority 49/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Git vulnerabilities

Related CVEs

CVE-2026-73625 HIGH 8.8 UPGRADE GitPython versions before 3.1.54 contain a remote code execution vulnerability in the check_unsafe_options gua
CVE-2026-73622 HIGH 7.5 UPGRADE GitPython before 3.1.55 fails to disable environment variable expansion in Remote.create() and Submodule.add()
CVE-2026-73623 HIGH 7.5 UPGRADE GitPython before 3.1.54 contains an incomplete denylist in unsafe_git_clone_options that omits --template, all
CVE-2026-73620 HIGH 8.1 UPGRADE GitPython before 3.1.57 fails to guard git option forwarding in IndexFile.checkout() and TagReference.create()
CVE-2026-73624 HIGH 8.1 UPGRADE GitPython versions before 3.1.54 contain an arbitrary file overwrite vulnerability in the Diffable.diff method

References

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