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CVE-2026-73620— GitPython before 3.1.57 Arbitrary File Overwrite and Read

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组织的一个封装版本控制功能的Python库。 gitpython-developers GitPython 3.1.57之前版本存在路径遍历漏洞，该漏洞源于IndexFile.checkout()和TagReference.create()中未对git选项转发进行防护，允许攻击者通过kwargs传递不安全选项，可能导致攻击者使用--prefix参数覆盖任意文件或使用-F参数读取任意文件。

CVSS 8.1 · High EPSS 0.57% · P45

Affected Version Matrix 2

VendorProduct Version RangeStatus
gitpython-developers GitPython < 3.1.57 affected
3.1.57 unaffected
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I. Basic Information for CVE-2026-73620

Vulnerability Information
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Vulnerability Title
GitPython before 3.1.57 Arbitrary File Overwrite and Read
Source: CVE Program / CVE List V5
Vulnerability Description
GitPython before 3.1.57 fails to guard git option forwarding in IndexFile.checkout() and TagReference.create(), allowing attackers to pass unsafe options via kwargs. Attackers can use --prefix to overwrite arbitrary files with repository content or -F to read arbitrary files returned in-band.
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
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
gitpython-developers GitPython 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
gitpython-developers GitPython是gitpython-developers组织的一个封装版本控制功能的Python库。 gitpython-developers GitPython 3.1.57之前版本存在路径遍历漏洞，该漏洞源于IndexFile.checkout()和TagReference.create()中未对git选项转发进行防护，允许攻击者通过kwargs传递不安全选项，可能导致攻击者使用--prefix参数覆盖任意文件或使用-F参数读取任意文件。
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
gitpython-developers GitPython 0 ~ 3.1.57 -

II. Public POCs for CVE-2026-73620

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: arbitrary file read via TagReference.create(-F) returned in-band secret: PROOF_57b6936950faf615
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
Upgrade to Pro+
claude_code · 8366 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
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
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-73620

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Vendor Advisories for CVE-2026-73620 (1)

News Coverage for CVE-2026-73620 (1)

Same Patch Batch · gitpython-developers · 2026-08-13 · 7 CVEs total

CVE-2026-73625 8.8 HIGH GitPython before 3.1.54 Remote Code Execution via kwarg value smuggling
CVE-2026-73624 8.1 HIGH GitPython before 3.1.54 Arbitrary File Overwrite via diff
CVE-2026-73623 7.5 HIGH GitPython before 3.1.54 Remote Code Execution via --template
CVE-2026-73622 7.5 HIGH GitPython before 3.1.55 Environment Variable Exfiltration via Remote.add()
CVE-2026-73619 6.5 MEDIUM GitPython before 3.1.57 Arbitrary File Read via Repo.archive()
CVE-2026-73621 5.4 MEDIUM GitPython before 3.1.56 Arbitrary File Truncation via Commit.count

IV. Related Vulnerabilities

Same product: GitPython
Same vendor: gitpython-developers
Same weakness: CWE-22

V. Comments for CVE-2026-73620

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