CVE-2026-35568

MEDIUM

5.7

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.

CVE Details

CVSS v3.1 Score5.7

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack VectorADJACENT_NETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published4/7/2026

Last Modified4/14/2026

Sourcenvd

Honeypot Sightings0

Affected Products

lfprojects:mcp_java_sdk

Weaknesses (CWE)

CWE-346

References

https://github.com/modelcontextprotocol/java-sdk/releases/tag/v1.0.0(security-advisories@github.com)

https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-8jxr-pr72-r468(security-advisories@github.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.