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CVE-2026-27977

🗓️ 17 Mar 2026 23:56:24Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 24 Views🌐 WEB

Next.js dev HMR CSRF bypass with Origin: null prior to 16.1.7; fixed in 16.1.7.

Related
Detection
Affected
Refs
Paths
NVD
Vulners
Node
vercelnext.jsRange16.0.116.1.7node.js
[
  {
    "vendor": "vercel",
    "product": "next.js",
    "versions": [
      {
        "version": ">= 16.0.1, < 16.1.7",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
Originheader/Unhandled TypeError during Server Actions CSRF validation leading to unauthenticated HTTP 500 DoS via crafted Origin headerCWE-1385

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17 Jun 2026 10:28Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.15.4
CVSS 42.3
EPSS0.00171
SSVC
24