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CVE-2026-110859— GitPython before 3.2.0 Arbitrary File Read via Head.checkout() Branch Name

Quick assessment

Affected
gitpython-developers GitPython
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.

在 GitPython 3.2.0 之前的版本中， 存在参数注入漏洞，远程攻击者可以通过提供一个被解析为 Git 选项的分支名称，实现读取任意文件的目的。攻击者可以托管一个默认分支名称为 的仓库，当克隆工具尝试检出该活动分支时，会因 GitCommandError 错误消息泄露文件内容。

CVSS 7.5 · High EPSS 0.31% · P22

Affected Version Matrix 2

VendorProduct Version RangeStatus
gitpython-developers GitPython < 3.2.0 affected
3.2.0 unaffected
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I. Basic Information for CVE-2026-110859

Vulnerability Information
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Vulnerability Title
GitPython before 3.2.0 Arbitrary File Read via Head.checkout() Branch Name
Source: CVE Program / CVE List V5
Vulnerability Description
GitPython before 3.2.0 contains an argument injection vulnerability in Head.checkout() that allows remote attackers to read arbitrary files by supplying a branch name parsed as a git option. Attackers can host a repository whose default branch is named --pathspec-from-file=<path>, causing cloning applications that check out the active branch to leak file contents through GitCommandError messages.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
gitpython-developers GitPython 0 ~ 3.2.0 -

II. Public POCs for CVE-2026-110859

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III. Intelligence Information for CVE-2026-110859

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Other References for CVE-2026-110859 (2)

Same Patch Batch · gitpython-developers · 2026-10-14 · 6 CVEs total

CVE-2026-110858 8.1 HIGH GitPython 3.1.30 before 3.2.0 Command Injection via Remote.pull() Refspec
CVE-2026-110856 7.5 HIGH GitPython before 3.2.0 ReDoS via _re_actor_epoch in parse_actor_and_date
CVE-2026-110857 7.5 HIGH GitPython before 3.2.0 Command Execution via ls_remote ext:: URLs
CVE-2026-110855 6.5 MEDIUM GitPython before 3.2.0 Environment Variable Disclosure via .gitmodules Submodule Name
CVE-2026-110860 6.1 MEDIUM GitPython 3.1.62 before 3.2.0 Symlink Path Traversal via Submodule.move()

IV. Related Vulnerabilities

Same product: GitPython
Same vendor: gitpython-developers
Same weakness: CWE-88

V. Comments for CVE-2026-110859

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