CVE-2024-32020

What it is

Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, local clones may end up hardlinking files into the target repository's object database when source and target repository reside on the same disk. If the source repository is owned by a different user, then those hardlinked files may be rewritten at any point in time by the untrusted user. Cloning local repositories will cause Git to either copy or hardlink files of the source repository into the target repository. This significantly speeds up such local clones compared to doing a "proper" clone and saves both disk space and compute time. When cloning a repository located on the same disk that is owned by a different user than the current user we also end up creating such hardlinks. These files will continue to be owned and controlled by the potentially-untrusted user and can be rewritten by them at will in the future. The problem has been patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account, but needs a user to act. Limited direct impact.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2024-05-14 19:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 07:29 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 3.9 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2024-05-14 19:15 UTC

Last modified

2026-06-17 07:29 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-281

Record status

Analyzed

Affected

• git-scm Git < 2.39.4
• git-scm Git < 2.40.2
• git-scm Git < 2.42.2
• git-scm Git < 2.43.4
• git-scm Git 2.41.0
• git-scm Git 2.44.0
• git-scm Git 2.45.0
• Fedoraproject Fedora 40

Attack profile CVSS 3.1 · 3.9

Attack vector

Local

Complexity

High

Privileges needed

Low

User interaction

Required

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2024-32020.md and follow it. Check whether this project is affected by CVE-2024-32020. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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