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CVE-2026-44578 Next.js: Server-side request forgery in applications using WebSocket upgrades

🗓️ 13 May 2026 17:01:38Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 37 Views

Next.js self-hosted Node.js server is vulnerable to server side forgery via WebSocket upgrades; fixed in 15.5.16 and 16.2.5.

Related
Affected
Refs
[
  {
    "vendor": "vercel",
    "product": "next.js",
    "versions": [
      {
        "version": ">= 16.0.0, < 16.2.5",
        "status": "affected"
      },
      {
        "version": ">= 13.4.13, < 15.5.16",
        "status": "affected"
      }
    ]
  }
]

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13 May 2026 17:01Current
CVSS 3.18.6
EPSS0.38811
37