CVE-2026-35568

Name: CVE-2026-35568
Creator: NVD / NIST
Published: 2026-04-07T22:16:23.433+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.6/10EPSS 0.14%

Last modified Jun 17, 2026

CVE-2026-35568 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. 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. EPSS estimates a 0.14% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.7/10

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

CVSS 4.0

7.6/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.14%

3.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-346

Affected Software

Vendor	Product	Versions
Lfprojects	Mcp Java Sdk	< 1.0.0

References

https://github.com/modelcontextprotocol/java-sdk/releases/tag/v1.0.0Release Notes
https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-8jxr-pr72-r468Vendor Advisory

Timeline

Published: Apr 7, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-35568?

How severe is CVE-2026-35568?

CVE-2026-35568 has a CVSS score of 7.6/10 (HIGH severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.

How do I fix CVE-2026-35568?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-35568?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST