CVE-2026-114097
Published:October 21, 2026
Updated:October 21, 2026
Dulwich from 0.23.1 before 1.2.8 contains a path traversal vulnerability in CommitFilter._apply_index_filter() that allows attackers to write files outside the working directory via symlinks persisting between commits. Attackers can craft a repository where an ancestor commit's symlink redirects a descendant commit's file writes during filter_branch, enabling code execution by writing into .git/hooks.
Affected Packages
dulwich (CONDA):
Affected version(s) >=1.0.0 <1.2.10Fix Suggestion:
Update to version 1.2.10https://github.com/jelmer/dulwich.git (GITHUB):
Affected version(s) >=dulwich-1.0.0 <dulwich-1.2.8Fix Suggestion:
Update to version dulwich-1.2.8dulwich (PYTHON):
Affected version(s) >=1.0.0 <1.2.8Fix Suggestion:
Update to version 1.2.8Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.3
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')