CVE-2026-9733

{
  "id": "CVE-2026-9733",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-06-23T08:16:26.037",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter.\n\nWhen no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time (which is leaked via the HTTP Date header) and a call to Perl's built-in rand function.\n\nA predictable state allows an attacker to hijack another user's session through cross site request forgery (CSRF)."
    },
    {
      "lang": "es",
      "value": "Las versiones de Mojolicious::Plugin::Web::Auth::OAuth2 hasta la 0.17 para Perl tienen un parámetro de estado predeterminado inseguro.\n\nCuando no se especifica ningún generador de estado en el constructor, el módulo recurre por defecto al uso de un hash SHA-1 de fuentes predecibles y de baja entropía, incluyendo el tiempo de época (que se filtra a través del encabezado HTTP Date) y una llamada a la función rand incorporada de Perl.\n\nUn estado predecible permite a un atacante secuestrar la sesión de otro usuario mediante falsificación de petición en sitios cruzados (CSRF)."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "vendor": "HAYAJO",
          "product": "Mojolicious::Plugin::Web::Auth::OAuth2",
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "Mojolicious-Plugin-Web-Auth",
          "programFiles": [
            "lib/Mojolicious/Plugin/Web/Auth/OAuth2.pm"
          ],
          "programRoutines": [
            {
              "name": "Mojolicious::Plugin::Web::Auth::OAuth2::_state_generator"
            }
          ],
          "repo": "https://github.com/hayajo/Mojolicious-Plugin-Web-Auth",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "0.17",
              "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:N",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-23T14:18:00.494484Z",
          "id": "CVE-2026-9733",
          "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-338"
        },
        {
          "lang": "en",
          "value": "CWE-340"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://datatracker.ietf.org/doc/html/rfc6749#section-10.12",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/HAYAJO/Mojolicious-Plugin-Web-Auth-0.17/source/lib/Mojolicious/Plugin/Web/Auth/OAuth2.pm#L129-131",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://security.metacpan.org/patches/M/Mojolicious-Plugin-Web-Auth/0.17/CVE-2026-9733-r2.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/06/23/1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}