Medium severity · published Oct 14, 2026
CVE-2026-110855
GitPython before 3.2.0 Environment Variable Disclosure via .gitmodules Submodule Name
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
GitPython before 3.2.0 contains an information disclosure vulnerability that allows malicious repositories to expand environment variables via separate_git_dir in Repo._clone(), which omits expand_vars=False when calling Git.polish_url(). Attackers can craft a .gitmodules submodule name containing variable syntax so that clone plus submodule_update exposes secrets in .git/modules directory names and DEBUG logs.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% 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-2026-110855
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-110855
github.com
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-fx3j-rwgx-fr94
www.vulncheck.com
https://www.vulncheck.com/advisories/gitpython-before-3.2.0-environment-variable-disclosure-via-gitmodules-submodule-name
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