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CVE-2026-110855— GitPython before 3.2.0 Environment Variable Disclosure via .gitmodules Submodule 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.

GitPython before 3.2.0 contains an information disclosure vulnerability that allows malicious repositories to expand environment variables via separate_git_dir in Repo._clone(), which omits expand_vars=False when calling Git.polish_url(). Attackers can craft a

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-110855

Vulnerability Information

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Vulnerability Title
GitPython before 3.2.0 Environment Variable Disclosure via .gitmodules Submodule Name
Source: CVE Program / CVE List V5
Vulnerability Description
GitPython before 3.2.0 contains an information disclosure vulnerability that allows malicious repositories to expand environment variables via separate_git_dir in Repo._clone(), which omits expand_vars=False when calling Git.polish_url(). Attackers can craft a .gitmodules submodule name containing variable syntax so that clone plus submodule_update exposes secrets in .git/modules directory names and DEBUG logs.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
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-2026-110855

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III. Intelligence Information for CVE-2026-110855

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Other References for CVE-2026-110855 (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-2026-110859 7.5 HIGH GitPython before 3.2.0 Arbitrary File Read via Head.checkout() Branch Name
CVE-2026-110857 7.5 HIGH GitPython before 3.2.0 Command Execution via ls_remote ext:: URLs
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-200

V. Comments for CVE-2026-110855

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