🚨 CVE-2026-87819
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.
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Denial of Service via catastrophic backtracking (ReDoS) in Actor.name_email_regex — commit author/committer field parsing
### Summary
GitPython's `Actor.name_email_regex` regular expression (`git/util.py`, line 863)
is vulnerable to catastrophic backtracking (ReDoS — Regular Expression Denial of
Service). Whe...
September 9, 2026 29
