CVE-2026-45571

MEDIUM

go-git: Crafted repositories may modify main and submodule .git directories

Title source: cna
STIX 2.1

Description

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.1 and 6.0.0-alpha.4, a path validation issue in go-git could allow crafted repository data to affect files outside the intended checkout target, including the repository's .git directory. These validations were introduced in upstream Git years ago, so the vulnerability arose from go-git drifting from those checks. This vulnerability is fixed in 5.19.1 and 6.0.0-alpha.4.

References (1)

Core 1
Core References

Scores

CVSS v3 5.4
EPSS 0.0030
EPSS Percentile 21.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-22
Status published
Products (7)
go-git/go-git 0 - 44.7.0Go
go-git/go-git 0 - 5.19.1Go
go-git/go-git 0 - 6.0.0-alpha.4Go
go-git/go-git < 5.19.1
go-git/go-git >= 6.0.0-alpha.1, < 6.0.0-alpha.4
go-git_project/go-git 6.0.0 alpha1 (3 CPE variants)
go-git_project/go-git < 5.19.1
Published May 27, 2026
Tracked Since May 27, 2026