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

3 known vulnerabilities (3 high), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://pkg.go.dev/github.com/modelcontextprotocol/go-sdk

## Advisories (3)

### [CVE-2026-34742](https://cve.now/CVE-2026-34742): Model Context Protocol Go SDK: DNS Rebinding Protection Disabled by Default for Servers Running on Localhost

- Severity: High 7.6
- Published: Apr 2, 2026
- Affected: fixed in 1.4.0.

### [CVE-2026-33252](https://cve.now/CVE-2026-33252): MCP Go SDK Allows Cross-Site Tool Execution for HTTP Servers without Authorizatrion

- Severity: High 7.1
- Published: Mar 23, 2026
- Affected: fixed in 1.4.1.

### [CVE-2026-27896](https://cve.now/CVE-2026-27896): MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity

- Severity: High 7.0
- Published: Feb 26, 2026
- Affected: fixed in 1.3.1.

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