{"answers":{"affected":"2 open source packages ship an affected version, including io.modelcontextprotocol.sdk:mcp-core. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-35568 in the wild and no public exploit code.","fix":"Upgrade io.modelcontextprotocol.sdk:mcp-core to 1.0.0 or later.","what":"CVE-2026-35568 is a high-severity server-side request forgery vulnerability in modelcontextprotocol java-sdk, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-35568 and fix it if it is affected.\n\nWhat it is: CVE-2026-35568 is a high-severity server-side request forgery vulnerability in modelcontextprotocol java-sdk, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-35568 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- io.modelcontextprotocol.sdk:mcp-core (Maven): affected all versions; fixed in 1.0.0\n- io.modelcontextprotocol.sdk:mcp-core (Maven): affected all versions; fixed in 1.0.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-35568/ (Markdown: https://insights.sbomify.com/CVE-2026-35568/index.md)","id":"CVE-2026-35568","markdown":"https://insights.sbomify.com/CVE-2026-35568/index.md","name":"CVE-2026-35568","record":{"aliases":["GHSA-8jxr-pr72-r468","MINI-7462-v2ff-7m68","MINI-cfvw-qr57-hhj5"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"MCP Java SDK","requires_auth":"none","summary":"An attacker can exploit DNS rebinding to access private MCP servers via a victim's browser, enabling unauthorized tool calls and potential code execution.","user_interaction":"required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"mcp_java_sdk","vendor":"lfprojects"}],"cvss":{"score":7.6,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-346","name":"Origin Validation Error"}],"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.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"MCP Java-SDK has a DNS Rebinding Vulnerability","id":"CVE-2026-35568","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"ApostropheCMS: Stored XSS in SEO Fields Leads to Authenticated API Data Exposure in ApostropheCMS","id":"CVE-2026-35569"},"packages":[{"ecosystem":"Maven","fixed":["1.0.0"],"introduced":["0"],"last_affected":[],"package":"io.modelcontextprotocol.sdk:mcp-core","purl":null,"source":"GHSA-8jxr-pr72-r468"},{"ecosystem":"Maven","fixed":["1.0.0"],"introduced":["0"],"last_affected":[],"package":"io.modelcontextprotocol.sdk:mcp-core","purl":"pkg:maven/io.modelcontextprotocol.sdk/mcp-core","source":"GHSA-8jxr-pr72-r468"}],"prev":{"headline":"Apache Storm UI: Stored Cross-Site Scripting (XSS) via Unsanitized Topology Metadata in Storm UI","id":"CVE-2026-35565"},"products":["java-sdk"],"published":"2026-04-07","related":[{"cvss_score":6.1,"headline":"MCP Java SDK has a Hardcoded Wildcard CORS (Access-Control-Allow-Origin: *)","id":"CVE-2026-34237","kev_date_added":null,"published":"2026-03-31"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-08","vendors":["modelcontextprotocol"]},"summary":"An attacker can exploit DNS rebinding to access private MCP servers via a victim's browser, enabling unauthorized tool calls and potential code execution.","url":"https://insights.sbomify.com/CVE-2026-35568/"}