ghsa-vh9x-phq6-fx54
Vulnerability from github
Published
2025-08-06 21:31
Modified
2025-08-06 22:09
Severity ?
2.7 (Low) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
Summary
Duplicate Advisory: Denial of service via malicious preflight requests in github.com/rs/cors
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-mh55-gqvf-xfwm. This link is maintained to preserve external references.

Original Description

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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rs/cors"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.9.0"
            },
            {
              "fixed": "1.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-08-06T22:09:08Z",
    "nvd_published_at": "2025-08-06T21:15:29Z",
    "severity": "LOW"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-mh55-gqvf-xfwm. This link is maintained to preserve external references.\n\n### Original Description\nMiddleware 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.",
  "id": "GHSA-vh9x-phq6-fx54",
  "modified": "2025-08-06T22:09:08Z",
  "published": "2025-08-06T21:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47908"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rs/cors/issues/170"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rs/cors/pull/171"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rs/cors"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2024-2883"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Duplicate Advisory: Denial of service via malicious preflight requests in github.com/rs/cors",
  "withdrawn": "2025-08-06T22:09:08Z"
}


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