CVE-2026-114096

HighCVSS 7.8/10Last modified Oct 21, 2026

Description

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-59

Affected software

No affected versions have been published.

Timeline

Published: Oct 21, 2026
Last modified: Oct 21, 2026
NVD status: Deferred

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