CVE-2026-87819

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductGitpython

PublishedSep 9, 2026

First seenSep 9, 2026

Weakness typeCWE-1333CWE-1333

How to fix

Update

gitpython_project gitpython3.1.60 or later
gitpython3.1.60 or later

Vendor advisories

github.com/gitpython-developers/GitPython/security/advisories/GHSA-g5vv-9gxw-82hx

Affected products

Product	Affected versions	Fixed in
gitpython_project gitpython	v < 3.1.60	3.1.60
gitpythonPyPI	v < 3.1.60	3.1.60

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