FKIE_CVE-2026-33637

Vulnerability from fkie_nvd - Published: 2026-05-19 19:16 - Updated: 2026-07-24 09:10
Severity
0.0 (None) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Versions 2.0.0 through 2.14.1 still allow protocol-relative host override when the request target is passed as a URI object (rather than a String) to Faraday::Connection#build_exclusive_url. This bypasses the February 2026 fix for GHSA-33mh-2634-fwr2 and enables off-host request forgery: a request built from a fixed-base Faraday::Connection can be redirected to an attacker-controlled host, forwarding connection-scoped values such as Authorization headers and default query parameters. This issue has been fixed in version 2.14.3.
References
security-advisories@github.comhttps://github.com/advisories/GHSA-33mh-2634-fwr2Vendor Advisory
security-advisories@github.comhttps://github.com/lostisland/faraday/security/advisories/GHSA-5rv5-xj5j-3484Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/lostisland/faraday/security/advisories/GHSA-5rv5-xj5j-3484Exploit, Vendor Advisory
Impacted products
Vendor Product Version
faraday_project faraday *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "faraday",
          "vendor": "lostisland",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c= 2.14.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:faraday_project:faraday:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B57F79A0-B84B-45A9-8B03-34DF0951519E",
              "versionEndExcluding": "2.14.2",
              "versionStartIncluding": "2.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Versions 2.0.0 through 2.14.1 still allow protocol-relative host override when the request target is passed as a URI object (rather than a String) to Faraday::Connection#build_exclusive_url. This bypasses the February 2026 fix for GHSA-33mh-2634-fwr2 and enables off-host request forgery: a request built from a fixed-base Faraday::Connection can be redirected to an attacker-controlled host, forwarding connection-scoped values such as Authorization headers and default query parameters. This issue has been fixed in version 2.14.3."
    },
    {
      "lang": "es",
      "value": "Faraday es una capa de abstracci\u00f3n de biblioteca cliente HTTP que proporciona una interfaz com\u00fan sobre muchos adaptadores. Las versiones 2.0.0 a 2.14.1 a\u00fan permiten la anulaci\u00f3n de host relativa al protocolo cuando el objetivo de la solicitud se pasa como un objeto URI (en lugar de una cadena) a Faraday::Connection#build_exclusive_url. Esto elude la correcci\u00f3n de febrero de 2026 para GHSA-33mh-2634-fwr2 y permite la falsificaci\u00f3n de solicitudes fuera del host: una solicitud construida a partir de una Faraday::Connection de base fija puede ser redirigida a un host controlado por el atacante, reenviando valores con \u00e1mbito de conexi\u00f3n como encabezados de autorizaci\u00f3n y par\u00e1metros de consulta predeterminados. Este problema ha sido corregido en la versi\u00f3n 2.14.3."
    }
  ],
  "id": "CVE-2026-33637",
  "lastModified": "2026-07-24T09:10:00.153",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 0.0,
          "baseSeverity": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 0.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-33637",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-19T18:36:58.299461Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-19T19:16:49.113",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/advisories/GHSA-33mh-2634-fwr2"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/lostisland/faraday/security/advisories/GHSA-5rv5-xj5j-3484"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/lostisland/faraday/security/advisories/GHSA-5rv5-xj5j-3484"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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