CVE-2026-114097
Dulwich 0.23.1 before 1.2.8 Symlink Path Traversal via filter_branch Index Filter
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 |
| Vendor | jelmer |
| Product | dulwich |
| Published | Oct 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
jelmer / dulwich
0.23.1 < 1.2.8
References
Credits
🔍 manus-use jelmer