CVE-2024-32002: Git's recursive clones on case-insensitive filesystems that support symlinks are susceptible to Remote Code Execution

Severity: critical (CVSS 9.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 29.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-14 · updated 2026-06-17
Weakness: CWE-22

Description

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, repositories with submodules can be crafted in a way that exploits a bug in Git whereby it can be fooled into writing files not into the submodule's worktree but into a `.git/` directory. This allows writing a hook that will be executed while the clone operation is still running, giving the user no opportunity to inspect the code that is being executed. 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. If symbolic link support is disabled in Git (e.g. via `git config --global core.symlinks false`), the described attack won't work. As always, it is best to avoid cloning repositories from untrusted sources.

Affected products

Git: before 2.39.4; from 2.40.0 before 2.40.2; from 2.42.0 before 2.42.2; from 2.43.0 before 2.43.4; 2.41.0, 2.44.0, 2.45.0 — fixed in 2.39.4, 2.40.2, 2.42.2, 2.43.4

How to fix

Upgrade to a fixed version: Git 2.39.4, 2.40.2, 2.42.2, 2.43.4. Check the vendor advisory for mitigations.

References

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