CVE-2026-8368

{
  "id": "CVE-2026-8368",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-05-12T15:16:19.690",
  "lastModified": "2026-10-26T18:10:00.173",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects.\n\nOn a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are sent unchanged to the redirect target, including across scheme, host, or port changes.\n\nA redirect to an attacker controlled host therefore discloses the caller's credentials to that host."
    },
    {
      "lang": "es",
      "value": "Las versiones de LWP::UserAgent anteriores a la 6.83 para Perl filtran los encabezados de Autorización y Proxy-Autorización en redirecciones de origen cruzado.\n\nEn una respuesta 3xx, el gestor de redirección elimina solo Host y Cookie antes de emitir la solicitud de seguimiento. Los encabezados de Autorización y Proxy-Autorización proporcionados por el llamador se envían sin cambios al objetivo de la redirección, incluso a través de cambios de esquema, host o puerto.\n\nUna redirección a un host controlado por un atacante, por lo tanto, revela las credenciales del llamador a ese host."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "vendor": "OALDERS",
          "product": "LWP::UserAgent",
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "libwww-perl",
          "programFiles": [
            "lib/LWP/UserAgent.pm"
          ],
          "programRoutines": [
            {
              "name": "LWP::UserAgent::request"
            }
          ],
          "repo": "https://github.com/libwww-perl/libwww-perl",
          "versions": [
            {
              "version": "0",
              "lessThan": "6.83",
              "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:L/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-13T14:30:39.897128Z",
          "id": "CVE-2026-8368",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-522"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/libwww-perl/libwww-perl/commit/9c4aeb6f2dd32f2b7eaf2d7827cade31ea6cb2c6.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://github.com/libwww-perl/libwww-perl/pull/284",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://github.com/libwww-perl/libwww-perl/pull/512",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/OALDERS/libwww-perl-6.83/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/05/12/7",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}