{"schema_version":1,"title":"Anthropic Model Context Protocol vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 10 vulnerabilities in Anthropic Model Context Protocol: 0 in the last 7 days and 6 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-63128, was published on 16 September 2026.","url":"https://junglewise.ai/threats/technologies/model-context-protocol","json_url":"https://junglewise.ai/threats/technologies/model-context-protocol.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/model-context-protocol","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":10,"all_time":10,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":2,"last_90_days":6,"last_365_days":9},"latest":[{"cve":"CVE-2026-63128","cvss":7.5,"epss":0.0063,"slug":"cve-2026-63128-rmcp-streamable-http-server-unauthenticated-session-table-memory","title":"RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's stateful Streamable HTTP server in crates/rmcp","severity":"high","exploited":false,"published_at":"2026-09-16T15:17:39.96+00:00","url":"https://junglewise.ai/threats/cve-2026-63128-rmcp-streamable-http-server-unauthenticated-session-table-memory"},{"cve":"CVE-2026-63127","cvss":8.2,"epss":0.002,"slug":"cve-2026-63127-rmcp-missing-resource-field-validation-in-oauth-metadata","title":"RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's OAuth implementation in crates/rmcp/src/transp","severity":"high","exploited":false,"published_at":"2026-09-16T15:17:39.817+00:00","url":"https://junglewise.ai/threats/cve-2026-63127-rmcp-missing-resource-field-validation-in-oauth-metadata"},{"cve":"CVE-2026-67432","cvss":7.5,"epss":0.0078,"slug":"cve-2026-67432-model-context-protocol-ruby-sdk-memory-exhaustion-in","title":"Model Context Protocol Ruby SDK memory exhaustion in StreamableHTTPTransport","severity":"high","exploited":false,"published_at":"2026-07-29T20:17:12.277+00:00","url":"https://junglewise.ai/threats/cve-2026-67432-model-context-protocol-ruby-sdk-memory-exhaustion-in"},{"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"},{"cve":"CVE-2026-25536","cvss":7.1,"epss":0.0036,"slug":"cve-2026-25536-model-context-protocol-typescript-sdk-data-leak-in-mcpserver","title":"Model Context Protocol TypeScript SDK data leak in McpServer transport","severity":"high","exploited":false,"published_at":"2026-02-04T22:15:59.663+00:00","url":"https://junglewise.ai/threats/cve-2026-25536-model-context-protocol-typescript-sdk-data-leak-in-mcpserver"},{"cve":"CVE-2025-66416","cvss":4,"epss":0.0051,"slug":"cve-2025-66416-model-context-protocol-python-sdk-dns-rebinding-in-http-servers","title":"Model Context Protocol Python SDK DNS rebinding in HTTP servers","severity":"high","exploited":false,"published_at":"2025-12-02T16:52:08+00:00","url":"https://junglewise.ai/threats/cve-2025-66416-model-context-protocol-python-sdk-dns-rebinding-in-http-servers"},{"cve":"CVE-2025-53365","cvss":4,"epss":0.0039,"slug":"cve-2025-53365-model-context-protocol-python-sdk-denial-of-service-in-http","title":"Model Context Protocol Python SDK denial of service in HTTP transport","severity":"high","exploited":false,"published_at":"2025-07-04T22:06:31+00:00","url":"https://junglewise.ai/threats/cve-2025-53365-model-context-protocol-python-sdk-denial-of-service-in-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":1},{"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":2},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Anthropic Claude Code","slug":"claude-code","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/claude-code"},{"name":"Anthropic Claude Desktop","slug":"claude-desktop","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/claude-desktop"},{"name":"Anthropic Claude Agent SDK","slug":"claude-agent-sdk","vulnerabilities":3,"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","slug":"model-context-protocol","vendor":{"name":"Anthropic","slug":"anthropic","url":"https://junglewise.ai/threats/vendors/anthropic"},"aliases":[],"category":"library","homepage":"https://modelcontextprotocol.io","repo_url":"https://github.com/anthropics/anthropic-sdk-python","description":"An open protocol for building AI agent-based applications with standardized client-server communication.","url":"https://junglewise.ai/threats/technologies/model-context-protocol"},"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-2026-63127","cvss":8.2,"epss":0.002,"slug":"cve-2026-63127-rmcp-missing-resource-field-validation-in-oauth-metadata","title":"RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's OAuth implementation in crates/rmcp/src/transp","severity":"high","exploited":false,"published_at":"2026-09-16T15:17:39.817+00:00","url":"https://junglewise.ai/threats/cve-2026-63127-rmcp-missing-resource-field-validation-in-oauth-metadata"},{"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-2026-67432","cvss":7.5,"epss":0.0078,"slug":"cve-2026-67432-model-context-protocol-ruby-sdk-memory-exhaustion-in","title":"Model Context Protocol Ruby SDK memory exhaustion in StreamableHTTPTransport","severity":"high","exploited":false,"published_at":"2026-07-29T20:17:12.277+00:00","url":"https://junglewise.ai/threats/cve-2026-67432-model-context-protocol-ruby-sdk-memory-exhaustion-in"},{"cve":"CVE-2026-63128","cvss":7.5,"epss":0.0063,"slug":"cve-2026-63128-rmcp-streamable-http-server-unauthenticated-session-table-memory","title":"RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's stateful Streamable HTTP server in crates/rmcp","severity":"high","exploited":false,"published_at":"2026-09-16T15:17:39.96+00:00","url":"https://junglewise.ai/threats/cve-2026-63128-rmcp-streamable-http-server-unauthenticated-session-table-memory"},{"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-2026-25536","cvss":7.1,"epss":0.0036,"slug":"cve-2026-25536-model-context-protocol-typescript-sdk-data-leak-in-mcpserver","title":"Model Context Protocol TypeScript SDK data leak in McpServer transport","severity":"high","exploited":false,"published_at":"2026-02-04T22:15:59.663+00:00","url":"https://junglewise.ai/threats/cve-2026-25536-model-context-protocol-typescript-sdk-data-leak-in-mcpserver"},{"cve":"CVE-2025-66416","cvss":4,"epss":0.0051,"slug":"cve-2025-66416-model-context-protocol-python-sdk-dns-rebinding-in-http-servers","title":"Model Context Protocol Python SDK DNS rebinding in HTTP servers","severity":"high","exploited":false,"published_at":"2025-12-02T16:52:08+00:00","url":"https://junglewise.ai/threats/cve-2025-66416-model-context-protocol-python-sdk-dns-rebinding-in-http-servers"},{"cve":"CVE-2025-53365","cvss":4,"epss":0.0039,"slug":"cve-2025-53365-model-context-protocol-python-sdk-denial-of-service-in-http","title":"Model Context Protocol Python SDK denial of service in HTTP transport","severity":"high","exploited":false,"published_at":"2025-07-04T22:06:31+00:00","url":"https://junglewise.ai/threats/cve-2025-53365-model-context-protocol-python-sdk-denial-of-service-in-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"}