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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
gitpython-developers GitPython unaffected
Version Status Constraints
0 affected < 3.2.0
3.2.0 unaffected —

No data.

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Project Subscriptions

Vendors Products
Gitpython Project Subscribe
Gitpython Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Wed, 14 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
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.
Title GitPython before 3.2.0 ReDoS via _re_actor_epoch in parse_actor_and_date
First Time appeared Gitpython Project
Gitpython Project gitpython
Weaknesses CWE-1333
CPEs cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:*:*:*
Vendors & Products Gitpython Project
Gitpython Project gitpython
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-14T22:52:38.541Z

Reserved: 2026-10-14T22:16:22.734Z

Link: CVE-2026-110856

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-14T23:17:26.760

Modified: 2026-10-14T23:17:26.760

Link: CVE-2026-110856

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses