CVE-2026-67326
GitPython before 3.1.50 Newline Injection via config_writer section
Description
GitPython before 3.1.50 fails to validate newline characters in the section parameter of config_writer(), allowing attackers to inject arbitrary section headers into .git/config. Attackers can inject newlines to create a forged [core] section with hooksPath pointing to attacker-controlled directories, achieving remote code execution when git hooks are triggered.
INFO
Published Date :
Aug. 1, 2026, 1:17 p.m.
Last Modified :
Oct. 23, 2026, 11:10 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update GitPython to version 3.1.50 or later.
- Validate all user inputs for section headers.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-67326.
| URL | Resource |
|---|---|
| https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w | Exploit Vendor Advisory |
| https://www.vulncheck.com/advisories/gitpython-before-newline-injection-via-config-writer-section | Third Party Advisory |
| https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-67326 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-67326
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-67326 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-67326 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: GitPython de gitpython-developers, Description: GitPython anterior a la versión 3.1.50 no valida correctamente los caracteres de nueva línea en el parámetro ’section’ de ’config_writer()’, lo que permite a los atacantes inyectar encabezados de sección arbitrarios en .git/config. Los atacantes pueden inyectar caracteres de nueva línea para crear una sección ’[core]’ falsificada con ’hooksPath’ apuntando a directorios controlados por el atacante, logrando la ejecución remota de código cuando se activan los ’git hooks’. -
Initial Analysis by [email protected]
Sep. 16, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:* versions up to (excluding) 3.1.50 Added Reference Type VulnCheck: https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w Types: Exploit, Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/gitpython-before-newline-injection-via-config-writer-section Types: Third Party Advisory Added Reference Type CISA-ADP: https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 05, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-67326', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-03T15:32:43.014717Z'} {'id': 'CVE-2026-67326', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-04T00:00:00+00:00'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 03, 2026
Action Type Old Value New Value Added Reference https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w Added SSVC {'id': 'CVE-2026-67326', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-03T15:32:43.014717Z'} -
New CVE Received by [email protected]
Aug. 01, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'gitpython-developers', 'product': 'GitPython', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '3.1.50', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '3.1.50', 'versionType': 'semver'}], 'packageURL': 'pkg:pypi/gitpython', 'defaultStatus': 'unaffected'}] Added Description GitPython before 3.1.50 fails to validate newline characters in the section parameter of config_writer(), allowing attackers to inject arbitrary section headers into .git/config. Attackers can inject newlines to create a forged [core] section with hooksPath pointing to attacker-controlled directories, achieving remote code execution when git hooks are triggered. Added CVSS V4.0 AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/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 Added CVSS V3.1 AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-20 Added Reference https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w Added Reference https://www.vulncheck.com/advisories/gitpython-before-newline-injection-via-config-writer-section