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CVE-2026-73620 is an unsafe git option forwarding vulnerability in GitPython affecting versions before 3.1.57. The flaw is present in the IndexFile.checkout() and TagReference.create() code paths, where keyword arguments are forwarded to underlying git operations without adequately blocking unsafe options. This allows an attacker who can influence kwargs supplied to these methods to inject git options that were not intended to be exposed by the API. Documented abuse includes use of the git --prefix option to cause repository content to be written to attacker-chosen filesystem locations, resulting in arbitrary file overwrite, and use of the -F option to cause arbitrary file contents to be read and returned in-band. The issue has been associated with CWE-22.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An arbitrary file overwrite and read vulnerability in GitPython due to unsafe git option forwarding.
An arbitrary file overwrite and read vulnerability in GitPython caused by unsafe git option forwarding.
A GitPython vulnerability allowing arbitrary file overwrite and read through unsafe forwarding of git options.
A GitPython vulnerability allowing arbitrary file overwrite and read via unsafe Git option forwarding.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.