CVE-2026-114096
Dulwich 0.24.0 before 1.2.8 Symlink Write-Through via porcelain.checkout paths
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
Dulwich from 0.24.0 before 1.2.8 contains a symlink following vulnerability in porcelain.checkout(paths=[...]) that allows attackers to write arbitrary files by abusing raw os.open without O_NOFOLLOW. Attackers can craft a repository where a worktree symlink points to .git/hooks/post-checkout, so restoring the file from a tag writes a malicious hook for code execution.
| CWE | CWE-59 |
| 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
0.24.0 < 1.2.8
References
Credits
🔍 manus-use jelmer