CVE-2026-110856

CVSS 8.7 (high) · published 2026-10-14

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.

Weakness: CWE-1333

Source: NVD CVE-2026-110856

References

• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-m64x-33q8-m5h7
• https://www.vulncheck.com/advisories/gitpython-before-3.2.0-redos-via-re-actor-epoch-in-parse-actor-and-date
• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-m64x-33q8-m5h7

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