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CVE-2026-64646 Next.js: Unbounded Server Action payload in Edge runtime

🗓️ 27 Jul 2026 18:54:59Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 50 Views

CVE-2026-64646: Next.js Edge runtime server actions may cause memory growth; fixed in 15.5.21.

Related
Affected
Refs
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Rows per page
[
  {
    "vendor": "vercel",
    "product": "next.js",
    "versions": [
      {
        "version": ">= 13.0.0 < 15.5.21",
        "status": "affected"
      },
      {
        "version": ">= 16.0.0, < 16.2.11",
        "status": "affected"
      }
    ]
  }
]

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27 Jul 2026 18:54Current
CVSS 46.3
EPSS0.00531
50