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CVE-2026-35568

MCP Java-SDK has a DNS Rebinding Vulnerability

Published: Apr 7, 2026Updated: Apr 14, 2026 Sources: CVE List NVDCWE-346
NVD MITRE
5.7CVSSMEDIUM
EPSS Score
0.1%
Top 96.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:AAC:LPR:NUI:RS:UC:NI:HA:N
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-346

Affected Products

mcp java sdklfprojects
Mixed
AI / ML / notebook-mlops
java-sdkmodelcontextprotocol
Mixed
AI / ML / ai-agent-tooling
lfprojectsoss-projectAI / MLaka mlflow, valkey, model context protocol servers, mcp servers
modelcontextprotocoloss-projectAI / MLaka mcp, model context protocol

Exploitability

Official Patch Available

References

https://github.com/modelcontextprotocol/java-sdk/releases/tag/v1.0.0
github.com
https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-8jxr-pr72-r468
github.com

Timeline

Published
Apr 7, 2026
Last Updated
Apr 14, 2026

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