CVE-2026-6656

{
  "id": "CVE-2026-6656",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-07-20T07:16:42.440",
  "lastModified": "2026-10-24T20:10:00.137",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Crypt::Password versions through 0.28 for Perl are susceptible to timing attacks.\n\nThe check_password method uses the built-in eq operator. This allows discrepancies in timing to be used to guess the underlying hash."
    },
    {
      "lang": "es",
      "value": "Versiones de Crypt::Password hasta la 0.28 para Perl son susceptibles a ataques de temporización.\n\nEl método check_password utiliza el operador incorporado eq. Esto permite que las discrepancias en la temporización sean utilizadas para adivinar el hash subyacente."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "vendor": "DRSTEVE",
          "product": "Crypt::Password",
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "Crypt-Password",
          "programFiles": [
            "lib/Crypt/Password.pm"
          ],
          "programRoutines": [
            {
              "name": "Crypt::Password::check_password"
            }
          ],
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "0.28",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-20T13:06:09.076479Z",
          "id": "CVE-2026-6656",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-208"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://metacpan.org/release/DRSTEVE/Crypt-Password-0.28/source/lib/Crypt/Password.pm#L190-193",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://rt.cpan.org/Ticket/Display.html?id=180162",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/07/20/4",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}