github.com/modelcontextprotocol/go-sdk (Go)

The official Go SDK for Model Context Protocol servers and clients. Maintained in collaboration with Google.

Advisories

Latest version

v1.8.0

Released Sep 4, 2026

License

Apache-2.0, MIT, CC-BY-4.0

OpenSSF Scorecard

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How to fix

Upgrading to 1.4.1 or later clears every advisory below that has a fix.

Upgrade commands

go get github.com/modelcontextprotocol/go-sdk@v1.8.0 && go mod tidy

Known vulnerabilities

Advisory	Severity	Affected	Fixed in
GHSA-xw59-hvm2-8pj6 DNS Rebinding Protection Disabled by Default in Model Context Protocol Go SDK for Servers Running on Localhost	High EPSS 0.47%	`< 1.4.0`	`1.4.0`
GHSA-xw59-hvm2-8pj6 DNS Rebinding Protection Disabled by Default in Model Context Protocol Go SDK for Servers Running on Localhost	High EPSS 0.47%	`< 1.4.0`	`1.4.0`
GHSA-xw59-hvm2-8pj6 DNS Rebinding Protection Disabled by Default in Model Context Protocol Go SDK for Servers Running on Localhost	High EPSS 0.47%	`< 1.4.0`	`1.4.0`
GHSA-89xv-2j6f-qhc8 Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk	Medium EPSS 0.18%	`< 1.4.1`	`1.4.1`
GHSA-89xv-2j6f-qhc8 Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk	Medium EPSS 0.18%	`<= 1.4.0`	No fix yet
GHSA-89xv-2j6f-qhc8 Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk	Medium EPSS 0.18%	`< 1.4.1`	`1.4.1`
GHSA-q382-vc8q-7jhj Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk	High	`< 1.4.1`	`1.4.1`
GHSA-q382-vc8q-7jhj Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk	High	`< 1.4.1`	`1.4.1`
GHSA-q382-vc8q-7jhj Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk	High	`<= 1.4.0`	No fix yet
GHSA-wvj2-96wp-fq3f MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity	High EPSS 0.29%	`< 1.3.1`	`1.3.1`
GHSA-wvj2-96wp-fq3f MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity	High EPSS 0.29%	`< 1.3.1`	`1.3.1`
GHSA-wvj2-96wp-fq3f MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity	High EPSS 0.29%	`< 1.3.1`	`1.3.1`

Source: https://github.com/modelcontextprotocol/go-sdk

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