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    CVE-2026-114096

    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.

    Published:Oct 21, 2026
    Last Modified:Oct 28, 2026
    EPS:Oct 21, 2026
    EPSS Score:0.00155
    CVSS Score:7.8

    Affected Products

    Vendor
    Dulwich Project
    Product
    Dulwich

    Exploits

    No exploit reference

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    CVE-2026-114094 (CVSS 8.7) — Dulwich before 1.2.9 fails to validate DOS drive letter prefixes in Git tree path elements on Windows, allowin…
    CVE-2017-16228 (CVSS 9.8) — Dulwich before 0.18.5, when an SSH subprocess is used, allows remote attackers to execute arbitrary commands v…
    CVE-2015-0838 (CVSS 7.5) — Buffer overflow in the C implementation of the apply_delta function in _pack.c in Dulwich before 0.9.9 allows …
    CVE-2014-9706 (CVSS 7.5) — The build_index_from_tree function in index.py in Dulwich before 0.9.9 allows remote attackers to execute arbi…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High