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CVE-2026-33252 MCP Go SDK Allows Cross-Site Tool Execution for HTTP Servers without Authorizatrion

🗓️ 23 Mar 2026 23:44:16Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

Go MCP SDK before 1.4.1 allowed cross site POSTs without Origin validation or JSON content type.

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10 Apr 2026 05:42Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.17.1
EPSS0.00009
2