What’s Vulnerable › Vulnerabilities

CVE-2026-44244: GitPython: Newline injection in config_writer().set_value() enables RCE via core.hooksPath

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-05-07 · updated 2026-06-17
• Weakness: CWE-94

Description

GitPython is a python library used to interact with Git repositories. Prior to version 3.1.49, GitConfigParser.set_value() passes values to Python's configparser without validating for newlines. GitPython's own _write() converts embedded newlines into indented continuation lines (e.g. \n becomes \n\t), but Git still accepts an indented [core] stanza as a section header — so the injected core.hooksPath becomes effective configuration. Any Git operation that invokes hooks (commit, merge, checkout) will then execute scripts from the attacker-controlled path. This issue has been patched in version 3.1.49.

Affected products

• gitpython-developers GitPython: before 3.1.49 — fixed in 3.1.49

How to fix

Upgrade to a fixed version: gitpython-developers GitPython 3.1.49. Check the vendor advisory for mitigations.

References

• https://github.com/gitpython-developers/GitPython/releases/tag/3.1.49
• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-v87r-6q3f-2j67
• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-v87r-6q3f-2j67

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