fkie_cve-2025-47908
Vulnerability from fkie_nvd
Published
2025-08-06 21:15
Modified
2025-08-07 21:26
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.
References
security@golang.orghttps://github.com/rs/cors/issues/170
security@golang.orghttps://github.com/rs/cors/pull/171
security@golang.orghttps://pkg.go.dev/vuln/GO-2024-2883
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service."
    },
    {
      "lang": "es",
      "value": "El middleware genera una cantidad prohibitiva de asignaciones de mont\u00f3n al procesar solicitudes preflight maliciosas que incluyen un encabezado ACRH (Access-Control-Request-Headers) cuyo valor contiene muchas comas. Los atacantes pueden abusar de este comportamiento para generar una carga excesiva en el middleware/servidor con el fin de provocar una denegaci\u00f3n de servicio."
    }
  ],
  "id": "CVE-2025-47908",
  "lastModified": "2025-08-07T21:26:37.453",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "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:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-08-06T21:15:29.313",
  "references": [
    {
      "source": "security@golang.org",
      "url": "https://github.com/rs/cors/issues/170"
    },
    {
      "source": "security@golang.org",
      "url": "https://github.com/rs/cors/pull/171"
    },
    {
      "source": "security@golang.org",
      "url": "https://pkg.go.dev/vuln/GO-2024-2883"
    }
  ],
  "sourceIdentifier": "security@golang.org",
  "vulnStatus": "Awaiting Analysis"
}


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