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CVE-2026-76219— GitPython before 3.1.58 Arbitrary File Overwrite via read-tree

Quick assessment

Affected
gitpython-developers GitPython
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

gitpython-developers GitPython是gitpython-developers团队的一个提供Git仓库操作能力的Python组件。 gitpython-developers GitPython 3.1.58之前版本存在命令注入漏洞，该漏洞源于IndexFile.from_tree、IndexFile.reset和IndexFile.merge_tree方法中未对treeish字符串进行选项验证或参数分离，攻击者可注入--index-output选项覆盖任意文件，破坏攻击者控制的可写

CVSS 8.1 · High EPSS 0.28% · P20

Affected Version Matrix 2

VendorProduct Version RangeStatus
gitpython-developers GitPython < 3.1.58 affected
3.1.58 unaffected
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I. Basic Information for CVE-2026-76219

Vulnerability Information
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Vulnerability Title
GitPython before 3.1.58 Arbitrary File Overwrite via read-tree
Source: CVE Program / CVE List V5
Vulnerability Description
GitPython versions before 3.1.58 contain an arbitrary file overwrite vulnerability in IndexFile.from_tree, IndexFile.reset, and IndexFile.merge_tree methods that append caller-influenced treeish strings to git read-tree without option validation or argument separation. Attackers can inject the --index-output option to overwrite arbitrary files with a valid git-index blob, destroying existing file content at attacker-controlled writable paths.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
gitpython-developers GitPython 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
gitpython-developers GitPython是gitpython-developers团队的一个提供Git仓库操作能力的Python组件。 gitpython-developers GitPython 3.1.58之前版本存在命令注入漏洞，该漏洞源于IndexFile.from_tree、IndexFile.reset和IndexFile.merge_tree方法中未对treeish字符串进行选项验证或参数分离，攻击者可注入--index-output选项覆盖任意文件，破坏攻击者控制的可写
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
gitpython-developers GitPython 0 ~ 3.1.58 -

II. Public POCs for CVE-2026-76219

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9679 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-76219

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Vendor Advisories for CVE-2026-76219 (2)

Same Patch Batch · gitpython-developers · 2026-08-19 · 6 CVEs total

CVE-2026-76220 8.8 HIGH GitPython before 3.1.58 Command Execution via split_single_char_options
CVE-2026-76221 8.8 HIGH GitPython before 3.1.58 Config Injection via option-name
CVE-2026-76222 8.2 HIGH GitPython before 3.1.58 Path Traversal via .gitmodules Submodule Name
CVE-2026-76218 7.5 HIGH GitPython before 3.1.58 Remote Code Execution via Repo.init
CVE-2026-76217 6.5 MEDIUM GitPython before 3.1.58 Arbitrary File Read via pathspec-from-file

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-76219

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