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CVE-2026-64684 RMCP: Custom HTTP headers leak to cross-origin redirect targets

🗓️ 16 Sep 2026 21:18:48Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

rmcp before 2.1.0 leaks custom headers to cross-origin 307/308 redirects, exposing API keys.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-64684
16 Sep 202621:18
cve
euvd
EUVD
EUVD-2026-81266
16 Sep 202621:18
euvd
nvd
NVD
CVE-2026-64684
16 Sep 202622:17
nvd
redhatcve
RedhatCVE
CVE-2026-64684
16 Sep 202621:59
redhatcve
[
  {
    "vendor": "modelcontextprotocol",
    "product": "rust-sdk",
    "versions": [
      {
        "version": "< 2.1.0",
        "status": "affected"
      }
    ]
  }
]

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