# CVE-2021-29468: Arbitrary code execution when checking out an attacker-controlled Git branch

CVE-2021-29468 is fixed in Git on 1 platform by Git 2.32.0 (version 2.32.0), released June 7, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-29468
- Priority: High
- CVSS: 8.8
- EPSS: 0.0124
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 29, 2021
- Weakness: CWE-20: Improper Input Validation
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-29468

## Description

Cygwin Git is a patch set for the git command line tool for the cygwin environment. A specially crafted repository that contains symbolic links as well as files with backslash characters in the file name may cause just-checked out code to be executed while checking out a repository using Git on Cygwin. The problem will be patched in the Cygwin Git v2.31.1-2 release. At time of writing, the vulnerability is present in the upstream Git source code; any Cygwin user who compiles Git for themselves from upstream sources should manually apply a patch to mitigate the vulnerability. As mitigation users should not clone or pull from repositories from untrusted sources. CVE-2019-1354 was an equivalent vulnerability in Git for Visual Studio.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Git | 2.32.0 | [Git 2.32.0](https://patchblox.com/security/data/fix/windows-app/git.git-2.32.0.md) | Jun 7, 2021 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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