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CVE-2026-34742 Model Context Protocol Go SDK: DNS Rebinding Protection Disabled by Default for Servers Running on Localhost

🗓️ 02 Apr 2026 18:32:34Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 16 Views

Go MCP SDKs prior to 1.4.0 had no localhost DNS rebinding protection.

Related
Affected
Refs
[
  {
    "vendor": "modelcontextprotocol",
    "product": "go-sdk",
    "versions": [
      {
        "version": "< 1.4.0",
        "status": "affected"
      }
    ]
  }
]

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02 Apr 2026 18:32Current
CVSS 47.6
EPSS0.0042
16