{"cve":"CVE-2026-35568","nvd":{"published":"2026-04-07T22:16:23.433","modified":"2026-07-24T21:10:00.143","status":"Analyzed","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_v4":{"vector":"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","score":7.6},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","score":5.7},"cwes":["CWE-346"],"references":["https://github.com/modelcontextprotocol/java-sdk/releases/tag/v1.0.0","https://github.com/modelcontextprotocol/java-sdk/security/advisories/GHSA-8jxr-pr72-r468"],"products":["lfprojects:mcp_java_sdk"],"source":"nvd","synced_at":"2026-10-19T22:28:59.047572785+00:00"},"epss":{"cve":"CVE-2026-35568","score":0.00136,"percentile":0.03038,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8jxr-pr72-r468","url":"https://osv.dev/vulnerability/GHSA-8jxr-pr72-r468","summary":"Java-SDK has a DNS Rebinding Vulnerability","modified":"2026-09-10T03:51:01.317481630Z","packages":[{"ecosystem":"Maven","name":"io.modelcontextprotocol.sdk:mcp-core","purl":"pkg:maven/io.modelcontextprotocol.sdk/mcp-core","ranges":["<1.0.0"],"fixed":["1.0.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}