IndexFile.checkout() · GitPython: Unguarded git option forwarding
Affects legitSource GCVE Database
Not known to be exploited · CVSS 7.2 High : upgrade to 1.2.0.post0_13 soon.
Data as of 26 Oct 2026, 19:13 UTC
- Patch
- Available – fixed in 1.2.0.post0_13
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade legit to 1.2.0.post0_13.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Homebrewlegitpkg:brew/legitOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade GitPython to version 1.2.0.post0_13 or later, where these issues are fixed. The vendor advisory confirms a patch is available. No other mitigation is required as the fix addresses the root cause by adding proper safety checks on forwarded git options.
Description
GitPython versions before 1.2.0.post0_13 contain unguarded forwarding of git command options in IndexFile.checkout() and TagReference.create(), allowing arbitrary file overwrite and arbitrary file read respectively. The checkout method forwards unsafe options to git checkout-index, enabling an attacker to overwrite files anywhere writable by the process using the --prefix option. The tag creation method forwards unsafe options to git tag, allowing reading arbitrary files via the -F/--file option. Both issues arise from missing safety checks on forwarded kwargs. A fix is available in version 1.2.0.post0_13.
References
- github.com/gitpython-developers/GitPython/security/advisories/GHSA-3f7w-8rr8-f37f (opens in a new tab)
- github.com/gitpython-developers/GitPython/pull/2193 (opens in a new tab)
- github.com/gitpython-developers/GitPython/commit/3af0c2516c5e18c829da30338614688f6b69b49c (opens in a new tab)
- github.com/gitpython-developers/GitPython (opens in a new tab)
- github.com/gitpython-developers/GitPython/releases/tag/3.1.57 (opens in a new tab)