Vulnerability in Gitpython-Developers Gitpython
CVE-2026-76221
GitPython before 3.1.58 contains a config-name injection vulnerability in the option-name validator that allows attackers to forge arbitrary git-config directives by injecting equals signs, hash symbols, and whitespace into option names. Attackers can inject malicious option names like 'sshCommand = touch /tmp/RCE #' to execute arbitrary commands via core.sshCommand or core.hooksPath on the next git operation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.008 · change: +0.003
Affected products
Weakness classification (CWE)
References
- github.com/gitpython-developers/GitPython/security/advisories/GHSA-jm78-9fvv-mh… (Exploit, vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/gitpython-before-config-injection-via-option-name (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-76221?
- CVE-2026-76221 is a high-severity vulnerability in Gitpython-Developers Gitpython, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.8/10. Published 2026-08-19.
- How severe is CVE-2026-76221?
- High severity. CVSS v3 base score is 8.8 out of 10.