CVE-2026-35568 (GCVE-0-2026-35568)

Vulnerability from cvelistv5 – Published: 2026-04-07 21:06 – Updated: 2026-04-08 15:43
VLAI
Title
MCP Java-SDK has a DNS Rebinding Vulnerability
Summary
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.
Severity
7.6 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-08 15:43 UTC
CWE
  • CWE-346 - Origin Validation Error
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7771 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
modelcontextprotocol java-sdk Affected: < 1.0.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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