High severity · published Oct 14, 2026
CVE-2026-110859
GitPython before 3.2.0 Arbitrary File Read via Head.checkout() Branch Name
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
GitPython before 3.2.0 contains an argument injection vulnerability in Head.checkout() that allows remote attackers to read arbitrary files by supplying a branch name parsed as a git option. Attackers can host a repository whose default branch is named --pathspec-from-file=<path>, causing cloning applications that check out the active branch to leak file contents through GitCommandError messages.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitPython · gitpython-developers
before 3.2.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110859
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-110859
github.com
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-23mf-xhv8-69c2
www.vulncheck.com
https://www.vulncheck.com/advisories/gitpython-before-3.2.0-arbitrary-file-read-via-head-checkout-branch-name
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