CVE-2026-110856

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductGitpython

PublishedOct 14, 2026

First seenOct 14, 2026

Weakness typeCWE-1333CWE-1333

How to fix

Update

gitpython3.2.0 or later

Vendor advisories

github.com/gitpython-developers/GitPython/security/advisories/GHSA-m64x-33q8-m5h7

Affected products

Product	Affected versions	Fixed in
gitpythonPyPI	v < 3.2.0	3.2.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.