modules:
  - module: std
    versions:
      - fixed: 1.19.6
      - introduced: 1.20.0
        fixed: 1.20.1
    vulnerable_at: 1.20.0
    packages:
      - package: path/filepath
        goos:
          - windows
        symbols:
          - Clean
        derived_symbols:
          - Abs
          - Dir
          - EvalSymlinks
          - Glob
          - IsLocal
          - Join
          - Rel
          - Walk
          - WalkDir
description: |-
    A path traversal vulnerability exists in filepath.Clean on Windows.

    On Windows, the filepath.Clean function could transform an invalid
    path such as "a/../c:/b" into the valid path "c:\b". This
    transformation of a relative (if invalid) path into an absolute
    path could enable a directory traversal attack.

    After fix, the filepath.Clean function transforms this path
    into the relative (but still invalid) path ".\c:\b".
credit: RyotaK (https://ryotak.net)
references:
  - report: https://go.dev/issue/57274
  - fix: https://go.dev/cl/468123
  - web: https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E
cve_metadata:
    id: CVE-2022-41722
    cwe: |
        CWE-22: Improper Limitation of a Pathname to a Restricted
        Directory ("Path Traversal")