{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-108395 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-108395 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-108395 is a high-severity denial of service vulnerability in io.modelcontextprotocol.sdk:mcp, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-108395 and fix it if it is affected.\n\nWhat it is: CVE-2026-108395 is a high-severity denial of service vulnerability in io.modelcontextprotocol.sdk:mcp, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-108395 in the wild and no public exploit code.\n\nAffected product: io.modelcontextprotocol.sdk:mcp. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-108395/ (Markdown: https://insights.sbomify.com/CVE-2026-108395/index.md)","id":"CVE-2026-108395","markdown":"https://insights.sbomify.com/CVE-2026-108395/index.md","name":"CVE-2026-108395","record":{"aliases":["GHSA-4x8c-5vv7-973f"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Java MCP SDK","requires_auth":"none","summary":"Remote attackers can cause denial of service by sending unbounded HTTP request bodies to the Model Context Protocol Java SDK server transports.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"The Model Context Protocol Java SDK is the official Java SDK for Model Context Protocol servers and clients. From version 0.8.0 through 0.12.0 in the io.modelcontextprotocol.sdk:mcp artifact, from 0.13.0 through 0.18.3 and 1.0.0 through 1.1.3 in io.modelcontextprotocol.sdk:mcp-core, and from mcp-core 2.0.0-M1 through 2.0.0, the Servlet-based SSE, Streamable HTTP, and Stateless server transports read an HTTP request body into memory without enforcing a maximum size. An unauthenticated remote client able to reach an affected transport can stream an arbitrarily large POST body, including with chunked transfer encoding, until the Java process exhausts its heap and becomes unavailable. Authentication, Origin or Host validation, or an upstream request-size limit can reject the request before the vulnerable read. The maintained mcp-core lines are fixed in versions 0.18.4, 1.1.4, and 2.0.1.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Model Context Protocol Java SDK HTTP server transports allow memory exhaustion through unbounded request bodies","id":"CVE-2026-108395","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Windows Modern Device Management (MDM) Elevation of Privilege Vulnerability","id":"CVE-2026-108396"},"packages":[],"prev":{"headline":"HestiaCP Low-Privileged User to Root via Config-Field Injection and PATH Hijacking","id":"CVE-2026-108390"},"products":["io.modelcontextprotocol.sdk:mcp","io.modelcontextprotocol.sdk:mcp-core"],"published":"2026-10-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["modelcontextprotocol"]},"summary":"Remote attackers can cause denial of service by sending unbounded HTTP request bodies to the Model Context Protocol Java SDK server transports.","url":"https://insights.sbomify.com/CVE-2026-108395/"}