{"schema_version":1,"title":"Model Context Protocol Python SDK vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Model Context Protocol Python SDK: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-59950, was published on 15 July 2026.","url":"https://junglewise.ai/threats/technologies/mcp-python-sdk","json_url":"https://junglewise.ai/threats/technologies/mcp-python-sdk.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/mcp-python-sdk","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":4,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":3,"last_365_days":4},"latest":[{"cve":"CVE-2026-59950","cvss":4,"epss":0.0023,"slug":"cve-2026-59950-modelcontextprotocol-python-sdk-missing-origin-validation-in","title":"modelcontextprotocol python-sdk missing origin validation in WebSocket transport","severity":"high","exploited":false,"published_at":"2026-07-15T21:16:55.683+00:00","url":"https://junglewise.ai/threats/cve-2026-59950-modelcontextprotocol-python-sdk-missing-origin-validation-in"},{"cve":"CVE-2026-52870","cvss":7.6,"epss":0.0039,"slug":"cve-2026-52870-model-context-protocol-python-sdk-missing-authorization-in","title":"Model Context Protocol Python SDK missing authorization in experimental tasks","severity":"high","exploited":false,"published_at":"2026-07-15T20:17:38.577+00:00","url":"https://junglewise.ai/threats/cve-2026-52870-model-context-protocol-python-sdk-missing-authorization-in"},{"cve":"CVE-2026-52869","cvss":7.1,"epss":0.0054,"slug":"cve-2026-52869-modelcontextprotocol-mcp-authorization-bypass-in-sse-and-http","title":"modelcontextprotocol mcp authorization bypass in SSE and HTTP transports","severity":"high","exploited":false,"published_at":"2026-07-15T20:17:38.427+00:00","url":"https://junglewise.ai/threats/cve-2026-52869-modelcontextprotocol-mcp-authorization-bypass-in-sse-and-http"},{"cve":"CVE-2026-42559","cvss":8.8,"epss":0.0024,"slug":"cve-2026-42559-model-context-protocol-rmcp-dns-rebinding-in-streamable-http","title":"Model Context Protocol RMCP DNS rebinding in Streamable HTTP server","severity":"high","exploited":false,"published_at":"2026-05-14T15:16:46.75+00:00","url":"https://junglewise.ai/threats/cve-2026-42559-model-context-protocol-rmcp-dns-rebinding-in-streamable-http"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":3},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Model Context Protocol Registry","slug":"registry","vulnerabilities":5,"url":"https://junglewise.ai/threats/technologies/registry"}],"technology":{"hub":true,"name":"Model Context Protocol Python SDK","slug":"mcp-python-sdk","vendor":{"name":"Model Context Protocol","slug":"model-context-protocol","url":"https://junglewise.ai/threats/vendors/model-context-protocol"},"aliases":["model-context-protocol-python-sdk"],"category":"library","homepage":"https://modelcontextprotocol.io","repo_url":"https://github.com/modelcontextprotocol/python-sdk","description":"The Python implementation of the Model Context Protocol for connecting AI applications with data sources and tools.","url":"https://junglewise.ai/threats/technologies/mcp-python-sdk"},"most_severe":[{"cve":"CVE-2026-42559","cvss":8.8,"epss":0.0024,"slug":"cve-2026-42559-model-context-protocol-rmcp-dns-rebinding-in-streamable-http","title":"Model Context Protocol RMCP DNS rebinding in Streamable HTTP server","severity":"high","exploited":false,"published_at":"2026-05-14T15:16:46.75+00:00","url":"https://junglewise.ai/threats/cve-2026-42559-model-context-protocol-rmcp-dns-rebinding-in-streamable-http"},{"cve":"CVE-2026-52870","cvss":7.6,"epss":0.0039,"slug":"cve-2026-52870-model-context-protocol-python-sdk-missing-authorization-in","title":"Model Context Protocol Python SDK missing authorization in experimental tasks","severity":"high","exploited":false,"published_at":"2026-07-15T20:17:38.577+00:00","url":"https://junglewise.ai/threats/cve-2026-52870-model-context-protocol-python-sdk-missing-authorization-in"},{"cve":"CVE-2026-52869","cvss":7.1,"epss":0.0054,"slug":"cve-2026-52869-modelcontextprotocol-mcp-authorization-bypass-in-sse-and-http","title":"modelcontextprotocol mcp authorization bypass in SSE and HTTP transports","severity":"high","exploited":false,"published_at":"2026-07-15T20:17:38.427+00:00","url":"https://junglewise.ai/threats/cve-2026-52869-modelcontextprotocol-mcp-authorization-bypass-in-sse-and-http"},{"cve":"CVE-2026-59950","cvss":4,"epss":0.0023,"slug":"cve-2026-59950-modelcontextprotocol-python-sdk-missing-origin-validation-in","title":"modelcontextprotocol python-sdk missing origin validation in WebSocket transport","severity":"high","exploited":false,"published_at":"2026-07-15T21:16:55.683+00:00","url":"https://junglewise.ai/threats/cve-2026-59950-modelcontextprotocol-python-sdk-missing-origin-validation-in"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}