{"action":"Upgrade @modelcontextprotocol/server to 2.3.0 or later.","affected":[{"fixed":"2.3.0","introduced":"2.0.0"}],"component":"@modelcontextprotocol/server","cve_ids":["CVE-2026-111768"],"ecosystem":"npm","exploited":false,"fixed_versions":["2.3.0"],"ghsa_id":"GHSA-46jr-4wx8-v453","id":"tcs_01M5KEZKBA7J5H8R5RC341RSXK","modified_at":"2026-10-20T20:15:05.222078887Z","published_at":"2026-10-20T20:06:35Z","references":["https://osv.dev/vulnerability/GHSA-46jr-4wx8-v453","https://github.com/modelcontextprotocol/typescript-sdk/security/advisories/GHSA-46jr-4wx8-v453","https://github.com/modelcontextprotocol/typescript-sdk/pull/2926","https://github.com/modelcontextprotocol/typescript-sdk/pull/2927","https://github.com/modelcontextprotocol/typescript-sdk/commit/6d8dbc6cb590edf766fcb66b636ca6b654e99c37","https://github.com/modelcontextprotocol/typescript-sdk/commit/fd26801b3b387742fe24a90ed4b275dd6072209f","https://github.com/modelcontextprotocol/typescript-sdk"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-46jr-4wx8-v453#npm/@modelcontextprotocol/server","url":"https://osv.dev/vulnerability/GHSA-46jr-4wx8-v453"}],"summary":"MCP TypeScript SDK: One HTTP request within the default size limit could exhaust server memory during validation"}