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CVE-2026-110856GHSA-m64x-33q8-m5h7

GitPython before 3.2.0 ReDoS via _re_actor_epoch in parse_actor_and_date

gitpython-developers GitPython
Open in ThreatlineRecord JSON
CVSS
8.7High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 20 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.28%Chance of exploitation activity in the next 30 days, higher than 19% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.2.0Fixed versionCVE List
Published14 Oct 2026Updated 20 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

GitPython before 3.2.0 contains a regular expression denial of service vulnerability in the _re_actor_epoch pattern used by parse_actor_and_date on author, committer, and tagger lines. Attackers can serve repositories with commit or tag objects containing long space-filled lines lacking a valid epoch or timezone, causing quadratic backtracking and CPU exhaustion.

Text from CVE List

Affected versions 2

  • GitPythonaffected: all versions before 3.2.0CVE List
  • GitPythonunaffected: 3.2.0CVE List

References 2