CVE-2026-87817— GitPython before 3.1.60 Remote Code Execution via Git Directory Impersonation
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 3.1.60 之前的 GitPython 未能正确验证 git 目录的位置，攻击者可以通过诸如 、 和 等受跟踪文件来冒充 git 目录。攻击者可以通过在受跟踪的 hooks 目录中放置一个恶意的 pre-commit 钩子，当受害者对克隆或打开的仓库调用 时，该钩子将被执行，从而执行任意代码。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application T1195 · Supply Chain Compromise
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I. Basic Information for CVE-2026-87817
Vulnerability Information
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Vulnerability Title
GitPython before 3.1.60 Remote Code Execution via Git Directory Impersonation
Source: CVE Program / CVE List V5
Vulnerability Description
GitPython before 3.1.60 fails to properly validate the git directory location, allowing attackers to impersonate the git directory using tracked files like gitdir, commondir, and HEAD. Attackers can execute arbitrary code by placing a malicious pre-commit hook in the tracked hooks directory that executes when a victim calls index.commit() on a cloned or opened repository.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| gitpython-developers | GitPython | 0 ~ 3.1.60 | - |
|
II. Public POCs for CVE-2026-87817
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-87817 (2)
Same Patch Batch · gitpython-developers · 2026-09-09 · 3 CVEs total
| CVE-2026-87819 | 7.5 HIGH | GitPython before 3.1.60 Denial of Service via ReDoS |
| CVE-2026-87818 | 6.5 MEDIUM | GitPython 3.1.59 Local File Content Oracle via --no-index |
IV. Related Vulnerabilities
Same product: GitPython
-
CVE-2026-87819
GitPython before 3.1.60 Denial of Service via ReDoS -
CVE-2026-87818
GitPython 3.1.59 Local File Content Oracle via --no-index -
CVE-2026-78679
GitPython before 3.1.59 Arbitrary File Read via TagReference -
CVE-2026-78678
GitPython before 3.1.59 Arbitrary File Read via Repo.blame() -
CVE-2026-78677
GitPython before 3.1.59 Path Traversal via separate-git-dir
Same vendor: gitpython-developers
-
CVE-2026-87819
GitPython before 3.1.60 Denial of Service via ReDoS -
CVE-2026-87818
GitPython 3.1.59 Local File Content Oracle via --no-index -
CVE-2026-78679
GitPython before 3.1.59 Arbitrary File Read via TagReference -
CVE-2026-78678
GitPython before 3.1.59 Arbitrary File Read via Repo.blame() -
CVE-2026-78677
GitPython before 3.1.59 Path Traversal via separate-git-dir
Same weakness: CWE-94
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n8n: Expression Sandbox Escape in Editor-UI Enables Stored C -
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V. Comments for CVE-2026-87817
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