{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.261630"
              }
            ],
            "source": "DESCRIPTION"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "63bd1c8b74ea5a98c0566da99cdf9c84a87073bf"
            }
          ],
          "repo": "https://github.com/arodland/crypt-pbkdf2",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.\n\nThese versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.",
  "id": "CVE-2017-20240",
  "modified": "2026-07-08T05:39:24.871552204Z",
  "published": "2026-06-12T14:16:28.660Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/12/3"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.161520/source/lib/Crypt/PBKDF2.pm#L123-148"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes"
    },
    {
      "type": "FIX",
      "url": "https://github.com/arodland/Crypt-PBKDF2/pull/6"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}