What’s Vulnerable › Vulnerabilities

CVE-2026-67322: GitPython before 3.1.52 Environment Variable Exfiltration via clone_from

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-08-01 · updated 2026-10-23
• Weakness: CWE-200

Description

GitPython before 3.1.52 is vulnerable to environment-variable exfiltration in Repo.clone_from(). The caller-supplied remote URL is passed through Git.polish_url(), which on non-Cygwin platforms calls os.path.expandvars() on the URL before invoking git clone. An attacker who controls the clone URL can embed $NAME or ${NAME} tokens that are expanded to the values of the hosting process's environment variables (e.g., AWS_SECRET_ACCESS_KEY or GITHUB_TOKEN). The resulting URL, now containing the secret, is transmitted over the network to an attacker-controlled host during the clone attempt, disclosing the secret.

Affected products

• gitpython-developers GitPython: before 3.1.52 — fixed in 3.1.52

How to fix

Upgrade to a fixed version: gitpython-developers GitPython 3.1.52. Check the vendor advisory for mitigations.

References

• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-rwj8-pgh3-r573
• https://www.vulncheck.com/advisories/gitpython-before-environment-variable-exfiltration-via-clone-from
• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-rwj8-pgh3-r573

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