Information disclosure in Gitpython-Developers Gitpython
CVE-2026-110855
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/gitpython-developers/GitPython/security/advisories/GHSA-fx3j-rwgx-fr… (vendor-advisory)
- www.vulncheck.com/advisories/gitpython-before-3.2.0-environment-variable-disclo… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110855?
- CVE-2026-110855 is a medium-severity vulnerability in Gitpython-Developers Gitpython, classified under Information Disclosure. CVSS score: 6.5/10. Published 2026-10-14.
- How severe is CVE-2026-110855?
- Medium severity. CVSS v3 base score is 6.5 out of 10.