Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Lfprojects | Mcp Java Sdk | < 1.0.0 |
Related Weaknesses (CWE)
References
- https://github.com/modelcontextprotocol/java-sdk/releases/tag/v1.0.0Release Notes
- https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-8jxr-pVendor Advisory
FAQ
What is CVE-2026-35568?
CVE-2026-35568 is a vulnerability with a CVSS score of 5.7 (MEDIUM). 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 acce...
How severe is CVE-2026-35568?
CVE-2026-35568 has been rated MEDIUM with a CVSS base score of 5.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35568?
Check the references section above for vendor advisories and patch information. Affected products include: Lfprojects Mcp Java Sdk.