modules:
  - module: std
    versions:
      - introduced: 1.16.0
        fixed: 1.16.1
    packages:
      - package: archive/zip
        symbols:
          - toValidName
description: |
    Using Reader.Open on an archive containing a file with a path
    prefixed by "../" will cause a panic due to a stack overflow.
    If parsing user supplied archives, this may be used as a
    denial of service vector.
published: 2021-04-14T20:04:52Z
cves:
  - CVE-2021-27919
references:
  - fix: https://go.dev/cl/300489
  - fix: https://go.googlesource.com/go/+/cd3b4ca9f20fd14187ed4cdfdee1a02ea87e5cd8
  - report: https://go.dev/issue/44916
  - web: https://groups.google.com/g/golang-announce/c/MfiLYjG-RAw/m/zzhWj5jPAQAJ