CVE-2026-35568

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 v3 5.7 MEDIUM

5.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/modelcontextprotocol/java-sdk/releases/tag/v1.0.0	Release Notes
https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-8jxr-pr72-r468	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:lfprojects:mcp_java_sdk:*:*:*:*:*:*:*:*

History

14 Apr 2026, 19:31

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.7
CPE		cpe:2.3:a:lfprojects:mcp_java_sdk::::::::
First Time		Lfprojects mcp Java Sdk Lfprojects
References	~~() https://github.com/modelcontextprotocol/java-sdk/releases/tag/v1.0.0 -~~	() https://github.com/modelcontextprotocol/java-sdk/releases/tag/v1.0.0 - Release Notes
References	~~() https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-8jxr-pr72-r468 -~~	() https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-8jxr-pr72-r468 - Vendor Advisory

07 Apr 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 22:16

Updated : 2026-04-14 19:31

NVD link : CVE-2026-35568

Mitre link : CVE-2026-35568

CVE.ORG link : CVE-2026-35568

JSON object : View

Products Affected

lfprojects

mcp_java_sdk

CWE

CWE-346

Origin Validation Error

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