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CVE-2026-45571— go-git: Crafted repositories may modify main and submodule .git directories

Quick assessment

Affected
go-git go-git
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

go-git是go-git开源的一个用纯 Go 编写的高度可扩展的 git 实现库。 go-git 5.19.1之前版本和6.0.0-alpha.4之前版本存在路径遍历漏洞，该漏洞源于路径验证问题，可能导致特制仓库数据影响预期检出目标之外的文件。

CVSS 5.4 · Medium EPSS 0.30% · P22

Affected Version Matrix 2

VendorProduct Version RangeStatus
go-git go-git < 5.19.1 affected
>= 6.0.0-alpha.1, < 6.0.0-alpha.4 affected
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I. Basic Information for CVE-2026-45571

Vulnerability Information
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Vulnerability Title
go-git: Crafted repositories may modify main and submodule .git directories
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
go-git 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
go-git是go-git开源的一个用纯 Go 编写的高度可扩展的 git 实现库。 go-git 5.19.1之前版本和6.0.0-alpha.4之前版本存在路径遍历漏洞，该漏洞源于路径验证问题，可能导致特制仓库数据影响预期检出目标之外的文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
go-git go-git < 5.19.1 -

II. Public POCs for CVE-2026-45571

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III. Intelligence Information for CVE-2026-45571

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Vendor Advisories for CVE-2026-45571 (1)

Same Patch Batch · go-git · 2026-05-27 · 3 CVEs total

CVE-2026-45022 go-git: Improper parsing of specially crafted objects may lead to inconsistent interpretat
CVE-2026-45570 go-git: Improper single-quote escaping in go-git SSH transport

IV. Related Vulnerabilities

Same product: go-git
Same vendor: go-git
Same weakness: CWE-22

V. Comments for CVE-2026-45571

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