Bug 2525278

Summary: CVE-2026-76219 GitPython: GitPython: Arbitrary File Overwrite via `git read-tree` option injection [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Jon Weiser <jweiser>
Component: GitPythonAssignee: Lubomír Sedlář <lsedlar>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: epel10CC: athoscribeiro, carlwgeorge, code, igor.raits, lsedlar
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["78af6a8c-6227-4a2c-a286-887a7d9ad64d"]}
Fixed In Version: Doc Type: ---
Doc Text:
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Clone Of: Environment:
Last Closed: 2026-08-27 21:12:55 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2519597    

Description Jon Weiser 2026-08-27 20:39:30 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

GitPython versions before 3.1.58 contain an arbitrary file overwrite vulnerability in IndexFile.from_tree, IndexFile.reset, and IndexFile.merge_tree methods that append caller-influenced treeish strings to git read-tree without option validation or argument separation. Attackers can inject the --index-output option to overwrite arbitrary files with a valid git-index blob, destroying existing file content at attacker-controlled writable paths.
Comment 1 Ben Beasley 2026-08-27 21:12:55 UTC 
GitPython >=3.1.58 is already in all EPEL branches, except EPEL8 where it cannot be updated.