Bug 2530744 (CVE-2026-87817)

Summary: CVE-2026-87817 GitPython: GitPython: Remote Code Execution via Git directory impersonation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: alinfoot, anthomas, bbrownin, dfreiber, drow, dschmidt, dtrifiro, eglynn, ehelms, ggainey, jburrell, jdobes, jjoyce, jlanda, jmitchel, jpasqual, jpretori, jschluet, juwatts, kaycoth, kshier, lhh, mburns, mdellweg, mgarciac, mhulan, nmoumoul, orabin, osousa, pcreech, rchan, rjohnson, simaishi, smallamp, stcannon, teagle, tmalecek, vkumar, weaton, yguenane
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in GitPython. This vulnerability allows a remote attacker to execute arbitrary code. By failing to properly validate the git directory location, GitPython allows attackers to impersonate the git directory using tracked files such as gitdir, commondir, and HEAD. An attacker can then place a malicious pre-commit hook in the tracked hooks directory, which executes when a victim calls index.commit() on a cloned or opened repository.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2531403, 2531404    
Bug Blocks:    

Description OSIDB Bzimport 2026-09-09 11:32:00 UTC
GitPython before 3.1.60 fails to properly validate the git directory location, allowing attackers to impersonate the git directory using tracked files like gitdir, commondir, and HEAD. Attackers can execute arbitrary code by placing a malicious pre-commit hook in the tracked hooks directory that executes when a victim calls index.commit() on a cloned or opened repository.