mcp go sdk vulnerabilities and fixes

Recent CVEs affecting mcp go sdk, with upgrade or downgrade steps. 2 tracked.

Also searched as: mcpgosdk.

mcp go sdk has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-04-02. Highest priority: CVE-2026-34742 (score 38/100).

• CVE-2026-34742 HIGH 8.1 UPGRADE The Go MCP SDK used Go's standard encoding/json
• CVE-2026-33252 HIGH 7.1 UPGRADE The Go MCP SDK used Go's standard encoding/json

FAQ

How do I fix mcp go sdk vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is mcp go sdk being exploited right now?

None of the tracked mcp go sdk CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which mcp go sdk CVE should I patch first?

CVE-2026-34742 currently ranks highest (38/100): The Go MCP SDK used Go's standard encoding/json.

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