What’s Vulnerable › Vulnerabilities

CVE-2026-87819: GitPython before 3.1.60 Denial of Service via ReDoS

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-09-09 · updated 2026-09-18
• Weakness: CWE-1333

Description

GitPython before 3.1.60 contains a regular expression denial of service vulnerability in Actor.name_email_regex that processes commit author and committer fields. Attackers can craft a commit object with a malformed author field containing an unterminated angle bracket to cause quadratic backtracking, exhausting CPU resources for over two minutes per commit access.

Affected products

• gitpython-developers GitPython: before 3.1.60 — fixed in 3.1.60

How to fix

Upgrade to a fixed version: gitpython-developers GitPython 3.1.60. Check the vendor advisory for mitigations.

References

• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-g5vv-9gxw-82hx
• https://www.vulncheck.com/advisories/gitpython-before-3.1.60-denial-of-service-via-redos

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