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CVE-2026-63127 RMCP: Missing Resource Field Validation in OAuth Protected Resource Metadata Discovery

🗓️ 16 Sep 2026 14:50:54Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Missing OAuth resource validation in RMCP before 2.0.0 allows token theft via malicious MCP server.

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Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-63127
16 Sep 202614:50
cve
euvd
EUVD
EUVD-2026-80824
16 Sep 202622:13
euvd
nvd
NVD
CVE-2026-63127
16 Sep 202615:17
nvd
redhatcve
RedhatCVE
CVE-2026-63127
16 Sep 202615:51
redhatcve
vulnrichment
Vulnrichment
CVE-2026-63127 RMCP: Missing Resource Field Validation in OAuth Protected Resource Metadata Discovery
16 Sep 202614:50
vulnrichment
[
  {
    "vendor": "modelcontextprotocol",
    "product": "rust-sdk",
    "versions": [
      {
        "version": "< 2.0.0",
        "status": "affected"
      }
    ]
  }
]

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