CVE-2021-21237

HIGH

Git LFS <2.13.2 - Windows Code Execution via Current-Directory Git Binary

Title source: manual
STIX 2.1

Description

Git LFS is a command line extension for managing large files with Git. On Windows, if Git LFS operates on a malicious repository with a git.bat or git.exe file in the current directory, that program would be executed, permitting the attacker to execute arbitrary code. This does not affect Unix systems. This is the result of an incomplete fix for CVE-2020-27955. This issue occurs because on Windows, Go includes (and prefers) the current directory when the name of a command run does not contain a directory separator. Other than avoiding untrusted repositories or using a different operating system, there is no workaround. This is fixed in v2.13.2.

References (4)

Core 4

Scores

CVSS v3 7.2
EPSS 0.0044
EPSS Percentile 34.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

Details

CWE
CWE-426
Status published
Products (2)
git-lfs/git-lfs 0 - 2.13.2Go
git_large_file_storage_project/git_large_file_storage < 2.13.2
Published Jan 15, 2021
Tracked Since Feb 18, 2026