CVE-2026-8721

{
  "id": "CVE-2026-8721",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-05-17T19:16:25.310",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl truncates passwords with embedded NULLs.\n\nPassword parameters in PKCS12.xs are declared char *, which routes through Perl's default typemap to SvPV_nolen.  The Perl length is discarded.\n\nThe C code (or OpenSSL internally) calls strlen() on the buffer.  Any password byte at or after the first NULL is silently dropped. Binary / KDF-derived / HMAC-derived passwords lose entropy without any warnings."
    },
    {
      "lang": "es",
      "value": "Las versiones de Crypt::OpenSSL::PKCS12 hasta la 1.94 para Perl truncan contraseñas con NULLs incrustados.\n\nLos parámetros de contraseña en PKCS12.xs se declaran como char *, lo que se enruta a través del typemap predeterminado de Perl a SvPV_nolen. La longitud de Perl se descarta.\n\nEl código C (o OpenSSL internamente) llama a strlen() en el búfer. Cualquier byte de contraseña en o después del primer NULL se descarta silenciosamente. Las contraseñas binarias / derivadas de KDF / derivadas de HMAC pierden entropía sin ninguna advertencia."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "vendor": "JONASBN",
          "product": "Crypt::OpenSSL::PKCS12",
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "Crypt-OpenSSL-PKCS12",
          "programFiles": [
            "PKCS12.xs"
          ],
          "programRoutines": [
            {
              "name": "Crypt::OpenSSL::PKCS12::mac_ok"
            },
            {
              "name": "Crypt::OpenSSL::PKCS12::changepass"
            },
            {
              "name": "Crypt::OpenSSL::PKCS12::create"
            },
            {
              "name": "Crypt::OpenSSL::PKCS12::create_as_string"
            },
            {
              "name": "Crypt::OpenSSL::PKCS12::certificate"
            },
            {
              "name": "Crypt::OpenSSL::PKCS12::ca_certificate"
            },
            {
              "name": "Crypt::OpenSSL::PKCS12::private_key"
            },
            {
              "name": "Crypt::OpenSSL::PKCS12::info_as_hash"
            },
            {
              "name": "Crypt::OpenSSL::PKCS12::info"
            }
          ],
          "repo": "https://github.com/dsully/perl-crypt-openssl-pkcs12",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "1.94",
              "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:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-18T12:56:25.907387Z",
          "id": "CVE-2026-8721",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-170"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://metacpan.org/release/JONASBN/Crypt-OpenSSL-PKCS12-1.95/view/Changes.md",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/05/17/6",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}