SB2026090945 - Path traversal in GitPython

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Main Vulnerability Database SB2026090945

SB2026090945 - Path traversal in GitPython

Published: September 9, 2026 Updated: September 30, 2026

Security Bulletin ID SB2026090945
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Path traversal (CVE-ID: CVE-2026-100689)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: 1.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to create and populate directories outside the repository working tree.

The vulnerability exists due to improper limitation of a pathname to a restricted directory in the submodule update path in git/objects/submodule/base.py when processing a crafted .gitmodules path during a submodule update. A remote attacker can supply a crafted .gitmodules path to create and populate directories outside the repository working tree.

Exploitation requires application code to select a non-HEAD commit through a historical-commit submodule-update API.


Remediation

Install update from vendor's website.

References