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Fencer Vulns
high 7.5

CVE-2026-110856 json

GitPython before 3.2.0 ReDoS via _re_actor_epoch in parse_actor_and_date

published 2026-10-14 25 d ago modified 2026-10-27 12 d ago also GHSA-m64x-33q8-m5h7 , EUVD-2026-101739

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi gitpython 3.2.0
  • gitpython-developers GitPython 3.2.0
  • python-git Debian 12 3.1.30-1+deb12u3
  • python-git Debian 13 3.1.44-1+deb13u1
  • python-git Debian 14 3.2.1-1

debian advisories DEBIAN-CVE-2026-110856

  • python-GitPython openSUSE Tumbleweed 3.2.1-1.1

opensuse advisories openSUSE-SU-2026:12391-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-110856 updated cvss 7.5

GitPython: GitPython: Denial of Service via regular expression backtracking in date parsing

  • Red Hat Exploit Intelligence exploit-intelligence/vulnerability-analysis-rhel9
    affected: no fix available
  • Red Hat Ansible Automation Platform 2 python3.12-gitpython 3.1.60-1.el9ap, automation-controller 4.7.18-1.el9ap, ansible-automation-platform-26/hub-rhel9, ansible-automation-platform-27/hub-rhel9, ansible-automation-platform-24/controller-rhel8, ansible-automation-platform-25/controller-rhel8, +2 more
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-rocm-rhel9, rhelai3/bootc-gaudi-rhel9, rhelai3/disk-image-cuda-rhel9 Red Hat OpenShift AI (RHOAI) rhoai/odh-mlflow-rhel9, rhoai/odh-feature-server-rhel9, rhoai/odh-th-torch-cpu-py312-rhel9, rhoai/odh-th-torch-cuda-py312-rhel9, rhoai/odh-th-torch-rocm-py312-rhel9, rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9, +16 more Red Hat Satellite 6 satellite/iop-vulnerability-engine-rhel9
    affected: no fix available
  • Red Hat OpenShift AI 3.4 rhoai/odh-th06-cpu-torch210-py312-rhel9 1793084640, rhoai/odh-th06-rocm64-torch291-py312-rhel9 1792745990, rhoai/odh-th06-cuda130-torch210-py312-rhel9 1792748650, rhoai/odh-training-cuda128-torch29-py312-rhel9 1792890022, rhoai/odh-trustyai-nemo-guardrails-server-rhel9 1793001780
    fixed: vendor fix RHSA-2026:92510
  • Red Hat Satellite 6.16 for RHEL 8 python-pyyaml 6.0.1-1.el8pc, python-gitpython 3.2.1-1.el8pc, python3.11-pyyaml 6.0.1-1.el8pc, python3.11-gitpython 3.2.1-1.el8pc Red Hat Satellite 6.16 for RHEL 9 python-pyyaml 6.0.1-1.el9pc, python-gitpython 3.2.1-1.el9pc, python3.11-pyyaml 6.0.1-1.el9pc, python3.11-gitpython 3.2.1-1.el9pc
    fixed: vendor fix RHSA-2026:95655
  • Red Hat Satellite 6.17 for RHEL 9 python-gitpython 3.2.1-1.el9pc, python3.11-gitpython 3.2.1-1.el9pc
    fixed: vendor fix RHSA-2026:95656
  • Red Hat Satellite 6.18 for RHEL 9 python3.12-gitpython 3.2.1-1.el9pc
    fixed: vendor fix RHSA-2026:95657
  • Red Hat Satellite 6.19 satellite/iop-vmaas-rhel9 1793197872
    fixed: vendor fix RHSA-2026:92574
show 7 more
  • Red Hat Satellite 6.19 for RHEL 9 python3.12-gitpython 3.2.1-1.el9pc
    fixed: vendor fix RHSA-2026:92861
  • Red Hat AI Inference Server rhaiis/vllm-cpu-rhel9, rhaiis/vllm-tpu-rhel9
    not affected: vulnerable code not present
  • Red Hat Ansible Automation Platform 2 python-gitpython 3.1.40-1.el9ap, python3x-gitpython 3.1.40-1.el8ap, python3.11-gitpython 3.1.41-1.el9ap
    not affected: vulnerable code not in execute path
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-th06-cpu-torch291-py312-rhel9, rhoai/odh-th06-cuda130-torch291-py312-rhel9
    not affected: component not present
  • Red Hat OpenShift AI 3.4 rhoai/odh-cli-rhel9 1792722177, rhoai/rhai-cli-rhel9 1792722177, rhoai/odh-automl-rhel9 1792697253, rhoai/odh-mlflow-rhel9 1793002327, rhoai/odh-autorag-rhel9 1793265800, rhoai/odh-trainer-rhel9 1792817113, +95 more
    not affected: vulnerable code not present
  • Red Hat OpenStack Platform 13 (Queens) GitPython 1.0.1-5.el7ost Red Hat OpenStack Platform 16.2 python3-GitPython Red Hat OpenStack Platform 17.1 python3-GitPython, GitPython 1.0.1-5.el7ost
    not affected: vulnerable code not in execute path
  • Red Hat Satellite 6.16 for RHEL 8 python-nh3 0.3.0-2.el8pc, python-brotli 1.2.1-1.el8pc, python-django 4.2.30-2.el8pc, python-pillow 13.0.0-1.el8pc, python-urllib3 2.8.0-1.el8pc, python3.11-nh3 0.3.0-2.el8pc, +10 more Red Hat Satellite 6.16 for RHEL 9 python-nh3 0.3.0-2.el9pc, python-brotli 1.2.1-1.el9pc, python-django 4.2.30-2.el9pc, python-pillow 13.0.0-1.el9pc, python-urllib3 2.8.0-1.el9pc, python3.11-nh3 0.3.0-2.el9pc, +10 more Red Hat Satellite 6.17 for RHEL 9 python-brotli 1.2.1-1.el9pc, python-django 4.2.30-2.el9pc, python-pillow 13.0.0-1.el9pc, python-urllib3 2.8.0-1.el9pc, openvox-agent 8.32.0-1.el9sat, openvox-server 8.18.0-1.el9sat, +6 more Red Hat Satellite 6.18 for RHEL 9 openvox-agent 8.32.0-1.el9sat, openvox-server 8.18.0-1.el9sat, python3.12-brotli 1.2.1-1.el9pc, python3.12-django 4.2.30-3.el9pc, python3.12-pillow 13.0.0-1.el9pc, python3.12-urllib3 2.8.0-1.el9pc, +2 more Red Hat Satellite 6.19 for RHEL 9 openvox-agent 8.31.1-1.el9sat, openvox-server 8.17.0-1.el9sat, python3.12-brotli 1.2.1-1.el9pc, python3.12-django 4.2.30-3.el9pc, python3.12-pillow 13.0.0-1.el9pc, python3.12-urllib3 2.8.0-1.el9pc, +2 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
20 d ago

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-m64x-33q8-m5h7 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 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
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 4.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
pypi gitpython
<3.2.0
3.2.0

Affected products

  • gitpython-developers GitPython

Classification

Weakness
  • CWE-1333 Inefficient Regular Expression Complexity

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.