CVE-2026-76219: GitPython versions before 3.1.58 contain an arbitrary file overwrite vulnerability in IndexFile.from_tree, Ind

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HIGH 8.1UPGRADE

CVE-2026-76219 is a high-severity flaw (CVSS 8.1) affecting gitpython. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GitPython versions before 3.1.58 contain an arbitrary file overwrite vulnerability in IndexFile.from_tree, IndexFile.reset, and IndexFile.merge_tree methods that append caller-influenced treeish strings to git read-tree without option validation or argument separation. Attackers can inject the --index-output option to overwrite arbitrary files with a valid git-index blob, destroying existing file content at attacker-controlled writable paths.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-88
Published	2026-08-19
Last modified	2026-09-03

Publisher (CNA): VulnCheck · Vendor: gitpython project

Last updated 2026-09-03 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-19 14:17 UTCPublished CVE record published
2026-09-03 15:03 UTCUpdated Record last modified

gitpython project gitpython UPGRADE

Affected: < 3.1.58

Fixed in: 3.1.58

Safe to downgrade to: no unaffected older release

1. Check installed version

pip show gitpython

2. UPGRADE to 3.1.58

pip install --upgrade "gitpython>=3.1.58"

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-2026-76219?

gitpython: upgrade to 3.1.58. Exact commands for each OS are on this page.

Is CVE-2026-76219 being exploited?

CVE-2026-76219 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-2026-76219 affect?

CVE-2026-76219 affects gitpython. Severity is high (CVSS 8.1). GitPython versions before 3.1.58 contain an arbitrary file overwrite vulnerability in IndexFile.from_tree, IndexFile.reset, and IndexFile.merge_tree methods that append caller-influenced treeish strings to git read-tree without option valid

How urgent is CVE-2026-76219?

Priority 45/100. High severity; Public exploit reference

Software pages

Git vulnerabilities

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References

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