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CVE-2026-27978

🗓️ 17 Mar 2026 23:59:22Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 21 Views🌐 WEB

Fixes CSRF bypass for Server Actions when origin is null by treating it as a value and enforcing checks.

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 in Server Actions CSRF validation can cause HTTP 500 DoS via crafted Origin headerCWE-352

Data

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17 Jun 2026 10:28Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.3
CVSS 45.3
EPSS0.002
SSVC
21