MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients. Prior to versions 1.0.1 and 1.1.1, there is a hardcoded wildcard CORS vulnerability. This issue has been patched in versions 1.0.1 and 1.1.1.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 2
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Lfprojects Mcp_Java_Sdk
cpe:2.3:a:lfprojects:mcp_java_sdk:*:*:*:*:*:*:*:*
|
— |
1.0.1
|
|
Lfprojects Mcp_Java_Sdk
cpe:2.3:a:lfprojects:mcp_java_sdk:1.1.0:*:*:*:*:*:*:*
|
— | — |
References 3
https://github.com/modelcontextprotocol/java-sdk/blob/main/mcp-core/src/main/ja…
security-advisories@github.com
https://github.com/modelcontextprotocol/java-sdk/blob/main/mcp-core/src/main/ja…
security-advisories@github.com
https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-hv2w-…
security-advisories@github.com