CVE-2026-35568
MEDIUMMCP Java SDK <1.0.0 Local Server - DNS Rebinding
Title source: manualDescription
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.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-8jxr-pr72-r468
X_Refsource_Misc x_refsource_misc
https://github.com/modelcontextprotocol/java-sdk/releases/tag/v1.0.0
Scores
CVSS v3
5.7
EPSS
0.0014
EPSS Percentile
3.3%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-346
Status
published
Products (3)
io.modelcontextprotocol.sdk/mcp-core
0 - 1.0.0Maven
lfprojects/mcp_java_sdk
< 1.0.0
modelcontextprotocol/java-sdk
< 1.0.0
Published
Apr 07, 2026
Tracked Since
Apr 08, 2026