CVE-2026-35568
MediumCVSS 5.7Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
The official Java SDK for Model Context Protocol (MCP) contains a DNS rebinding vulnerability. Prior to version 1.0.0, an attacker can access a local or network-private MCP server via a victim's browser, allowing arbitrary tool calls on the server.
Risk Assessment
An attacker can remotely execute arbitrary operations on the MCP server as if they were a locally connected AI agent, potentially leading to unauthorized data and system access.
Recommendation
Immediately update the java-sdk package to version 1.0.0 or later.
Original NVD description (English source)
MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients. Prior to 1.0.0, the java-sdk contains a DNS rebinding vulnerability. This vulnerability allows an attacker to access a locally or network-private java-sdk MCP server via a victims browser that is either local, or network adjacent. This allows an attacker to make any tool call to the server as if they were a locally running MCP connected AI agent. This vulnerability is fixed in 1.0.0.