Command execution via joined short-option bypass
Published Aug 1, 2026 · Updated Aug 1, 2026
OS command injection in GitPython 3.1.50 allows remote attackers to execute arbitrary commands through attacker-controlled clone options. Repo._clone() passes joined -u tokens through _canonicalize_option_name(), which treats the helper text as part of the option name and misses the blocked -u alias. Exploitation requires an application to forward attacker-controlled multi_options while relying on allow_unsafe_options=False; Git then runs the helper with the application's privileges.
Summary
What happened
OS command injection in GitPython 3.1.50 allows remote attackers to execute arbitrary commands through attacker-controlled clone options. Repo._clone() passes joined -u tokens through _canonicalize_option_name(), which treats the helper text as part of the option name and misses the blocked -u alias. Exploitation requires an application to forward attacker-controlled multi_options while relying on allow_unsafe_options=False; Git then runs the helper with the application's privileges.
The record
- CVE
- CVE-2026-67324
- Published
- Aug 1, 2026
- Updated
- Aug 1, 2026
- Vendor
- GitPython Developers
- Product
- GitPython
- Classifications
- CWE-78, T1059
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 1, 2026CVE publishedPublication date reported by the CVE source.
- Aug 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.1.50 <3.1.51
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GitPython joined short-option local reproductionproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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