{"schema_version":1,"title":"Anthropic Model Context Protocol Python SDK vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Anthropic 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-2026-116686, was published on 27 October 2026. 3 vulnerabilities in the last four weeks, up from none in the four before.","url":"https://junglewise.ai/threats/technologies/anthropic-model-context-protocol-python-sdk","json_url":"https://junglewise.ai/threats/technologies/anthropic-model-context-protocol-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/anthropic-model-context-protocol-python-sdk","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":false,"counts":{"high":0,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":3,"last_90_days":3,"last_365_days":3},"latest":[{"cve":"CVE-2026-116686","cvss":6.5,"epss":0.0034,"slug":"cve-2026-116686-the-model-context-protocol-python-sdk-is-the-official-python-sdk","title":"Model Context Protocol Python SDK unvalidated $ref fetching","severity":"medium","exploited":false,"published_at":"2026-10-27T20:17:13.74+00:00","url":"https://junglewise.ai/threats/cve-2026-116686-the-model-context-protocol-python-sdk-is-the-official-python-sdk"},{"cve":"CVE-2026-116685","cvss":5.9,"epss":0.004,"slug":"cve-2026-116685-the-model-context-protocol-python-sdk-is-the-official-python-sdk","title":"Model Context Protocol Python SDK credential and body leak on cross-origin redirects","severity":"medium","exploited":false,"published_at":"2026-10-27T20:17:13.493+00:00","url":"https://junglewise.ai/threats/cve-2026-116685-the-model-context-protocol-python-sdk-is-the-official-python-sdk"},{"cve":"CVE-2026-116684","cvss":6.8,"epss":0.0037,"slug":"cve-2026-116684-the-model-context-protocol-python-sdk-is-the-official-python-sdk","title":"Model Context Protocol Python SDK token resource confusion in bearer authentication","severity":"medium","exploited":false,"published_at":"2026-10-27T20:17:13.307+00:00","url":"https://junglewise.ai/threats/cve-2026-116684-the-model-context-protocol-python-sdk-is-the-official-python-sdk"}],"weekly":[{"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},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":3},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Anthropic Claude Code","slug":"claude-code","vulnerabilities":31,"url":"https://junglewise.ai/threats/technologies/claude-code"},{"name":"Anthropic Model Context Protocol","slug":"model-context-protocol","vulnerabilities":11,"url":"https://junglewise.ai/threats/technologies/model-context-protocol"},{"name":"Anthropic Claude Desktop","slug":"claude-desktop","vulnerabilities":6,"url":"https://junglewise.ai/threats/technologies/claude-desktop"},{"name":"Anthropic Model Context Protocol SDK (TypeScript)","slug":"model-context-protocol-sdk-typescript","vulnerabilities":5,"url":"https://junglewise.ai/threats/technologies/model-context-protocol-sdk-typescript"},{"name":"Anthropic @Modelcontextprotocol/Sdk","slug":"anthropic-modelcontextprotocol-sdk","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/anthropic-modelcontextprotocol-sdk"},{"name":"Anthropic Claude Agent SDK","slug":"claude-agent-sdk","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/claude-agent-sdk"},{"name":"Anthropic Claude Code CLI","slug":"claude-code-cli","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/claude-code-cli"}],"technology":{"hub":true,"name":"Anthropic Model Context Protocol Python SDK","slug":"anthropic-model-context-protocol-python-sdk","vendor":{"hub":true,"name":"Anthropic","slug":"anthropic","url":"https://junglewise.ai/threats/vendors/anthropic"},"aliases":[],"category":"library","description":"Model Context Protocol Python SDK is an Anthropic library implementing the MCP protocol.","url":"https://junglewise.ai/threats/technologies/anthropic-model-context-protocol-python-sdk"},"most_severe":[{"cve":"CVE-2026-116684","cvss":6.8,"epss":0.0037,"slug":"cve-2026-116684-the-model-context-protocol-python-sdk-is-the-official-python-sdk","title":"Model Context Protocol Python SDK token resource confusion in bearer authentication","severity":"medium","exploited":false,"published_at":"2026-10-27T20:17:13.307+00:00","url":"https://junglewise.ai/threats/cve-2026-116684-the-model-context-protocol-python-sdk-is-the-official-python-sdk"},{"cve":"CVE-2026-116686","cvss":6.5,"epss":0.0034,"slug":"cve-2026-116686-the-model-context-protocol-python-sdk-is-the-official-python-sdk","title":"Model Context Protocol Python SDK unvalidated $ref fetching","severity":"medium","exploited":false,"published_at":"2026-10-27T20:17:13.74+00:00","url":"https://junglewise.ai/threats/cve-2026-116686-the-model-context-protocol-python-sdk-is-the-official-python-sdk"},{"cve":"CVE-2026-116685","cvss":5.9,"epss":0.004,"slug":"cve-2026-116685-the-model-context-protocol-python-sdk-is-the-official-python-sdk","title":"Model Context Protocol Python SDK credential and body leak on cross-origin redirects","severity":"medium","exploited":false,"published_at":"2026-10-27T20:17:13.493+00:00","url":"https://junglewise.ai/threats/cve-2026-116685-the-model-context-protocol-python-sdk-is-the-official-python-sdk"}],"generated_at":"2026-11-09T03:07:00.176479+00:00"}