CVE-2026-87079 Net::IDN::Punycode versions before 2.590 for Perl allow CPU exhaustion via quadratic insertion cost when decoding a long label in decode_punycode

[
  {
    "collectionURL": "https://cpan.org/modules",
    "defaultStatus": "unaffected",
    "modules": [
      "Net::IDN::Punycode"
    ],
    "packageName": "Net-IDN-Encode",
    "packageURL": "pkg:cpan/Net-IDN-Encode",
    "programFiles": [
      "lib/Net/IDN/Punycode.xs",
      "lib/Net/IDN/Punycode/PP.pm"
    ],
    "programRoutines": [
      {
        "name": "Net::IDN::Punycode::decode_punycode"
      },
      {
        "name": "Net::IDN::Punycode::PP::decode_punycode"
      }
    ],
    "repo": "https://github.com/robrwo/Net-IDN-Encode",
    "versions": [
      {
        "lessThan": "2.590",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]