CVE-2026-110856CWE-1333

CVE-2026-110856

High · published October 15, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
19.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00278 · 19.2th percentile
Weakness
CWE-1333 · Inefficient Regular Expression Complexity
Published
2026-10-15T03:17Z
References (3)
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-m64x-33q8-m5h7 · [email protected]https://www.vulncheck.com/advisories/gitpython-before-3.2.0-redos-via-re-actor-epoch-in-parse-actor-and-date · [email protected]https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-m64x-33q8-m5h7 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 16 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 14 OCT 22:52Z
    GitPython before 3.2.0 ReDoS via _re_actor_epoch in parse_actor_and_date
    cvelistv5
  • 14 OCT 22:52Z
    GitPython before 3.2.0 ReDoS via _re_actor_epoch in parse_actor_and_date
    cvelistv5