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EUVD-2026-8792

🗓️ 26 Feb 2026 22:20:08Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 26 Views

MCP SDK used case-insensitive parsing risking bypass; now uses a case-sensitive decoder; upgrade to version one point three one.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-27896
26 Feb 202600:47
–attackerkb
bdu_fstec
BDU FSTEC
MCP Go SDK JSON Unmarshal Bypass
2 Mar 202600:00
–bdu_fstec
cgr
Chainguard
CVE-2026-27896 vulnerabilities
27 Feb 202619:17
–cgr
circl
Circl
CVE-2026-27896
26 Feb 202602:20
–circl
cnnvd
CNNVD
MCP Go SDK security vulnerabilities
26 Feb 202600:00
–cnnvd
cve
CVE
CVE-2026-27896
26 Feb 202600:47
–cve
cvelist
Cvelist
CVE-2026-27896 MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity
26 Feb 202600:47
–cvelist
github
Github Security Blog
MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity
26 Feb 202622:20
–github
mend
Mend
CVE-2026-27896
26 Feb 202600:47
–mend
nvd
NVD
CVE-2026-27896
26 Feb 202601:16
–nvd
Rows per page
[
  {
    "enisaIdVendor": [
      {
        "id": "31c2e9ec-aa9d-3bc4-87f4-3ecb4791acbf",
        "vendor": {
          "name": "modelcontextprotocol"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "e4d9c2f2-def7-3918-827b-9a8575d1204d",
        "product": {
          "name": "go-sdk"
        },
        "product_version": "< 1.3.1"
      }
    ]
  }
]

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26 Feb 2026 22:20Current
8.3High risk
Vulners AI Score8.3
CVSS 47
EPSS0.00467
26