CVE-2026-7017

{
  "id": "CVE-2026-7017",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-07-07T19:16:55.530",
  "lastModified": "2026-10-25T20:10:00.147",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "HTTP::Tiny versions before 0.095 for Perl forward credential headers to cross-origin redirect targets.\n\nWhen the server returns a 3xx redirect, `_maybe_redirect` follows the `Location:` header and `_prepare_headers_and_cb` re-merges the caller's `headers` argument into the new request, without checking whether the redirect target shares an origin with the original URL. Caller-supplied `Authorization`, `Cookie` and `Proxy-Authorization` headers are therefore re-sent to whatever host the redirect names, across scheme, host or port boundaries, and including `https` to `http` downgrades that expose them in plaintext on the wire.\n\nThe HTTP::Tiny POD note that \"Authorization headers will not be included in a redirected request\" applied only to the URL-userinfo Basic-auth path, not to headers passed explicitly by the caller."
    },
    {
      "lang": "es",
      "value": "Versiones de HTTP::Tiny anteriores a la 0.095 para Perl reenvían encabezados de credenciales a destinos de redirección de origen cruzado.\n\nCuando el servidor devuelve una redirección 3xx, ’_maybe_redirect’ sigue el encabezado ’Location:’ y ’_prepare_headers_and_cb’ vuelve a fusionar el argumento ’headers’ del llamador en la nueva solicitud, sin verificar si el destino de la redirección comparte un origen con la URL original. Los encabezados ’Authorization’, ’Cookie’ y ’Proxy-Authorization’ proporcionados por el llamador son, por lo tanto, reenviados a cualquier host que nombre la redirección, a través de límites de esquema, host o puerto, e incluyendo degradaciones de ’https’ a ’http’ que los exponen en texto plano en la red.\n\nLa nota POD de HTTP::Tiny que dice que ’Los encabezados de autorización no se incluirán en una solicitud redirigida’ se aplicaba solo a la ruta de autenticación básica de URL-userinfo, no a los encabezados pasados explícitamente por el llamador."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "vendor": "HAARG",
          "product": "HTTP::Tiny",
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "HTTP-Tiny",
          "programFiles": [
            "lib/HTTP/Tiny.pm"
          ],
          "programRoutines": [
            {
              "name": "_maybe_redirect"
            },
            {
              "name": "_prepare_headers_and_cb"
            }
          ],
          "repo": "https://github.com/Perl-Toolchain-Gang/HTTP-Tiny",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.095",
              "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:R/S:U/C:H/I:L/A:N",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-07T18:31:23.699590Z",
          "id": "CVE-2026-7017",
          "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/Perl-Toolchain-Gang/HTTP-Tiny/commit/84984ef3930ddd4afcf5eb83b40d3cee200739c3.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://github.com/Perl-Toolchain-Gang/HTTP-Tiny/commit/8f32ca89e21c3ad0422adc698fa6ad17a193f55f.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://github.com/Perl-Toolchain-Gang/HTTP-Tiny/commit/e7a03aedf2395158f2b0d3bad2df943349227bb3.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://github.com/Perl-Toolchain-Gang/HTTP-Tiny/pull/36",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/HAARG/HTTP-Tiny-0.095-TRIAL/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/07/07/13",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}