CVE records
Every CVE as the CVE Program publishes it, refreshed every ten minutes, with NVD's analysis, CISA's known-exploited status and a healthcare tag. Subscribers get the CVEs that match their own systems on My program, by email as they are published. Where the data comes from: sources.
Updated under an hour ago ()
What this means for you
This week: 4,043 CVEs published, 329 critical, and 7 newly confirmed exploited. Add your stack to see whether any of them hit you.
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- Published in the last 7 days
- 4,043
- Show in the list
- Critical, last 7 days
- 329
- Show in the list
- Healthcare-tagged, last 7 days
- 9
- Show in the list
- Known exploited (CISA KEV)
- 1,756
- Show in the list
Showing CVEs that name the product modelcontextprotocol:python_sdk. Show all products
| CVE | Severity | Title | Published |
|---|---|---|---|
| CVE-2026-109527 | High 7.5 | Model Context Protocol Python SDK HTTP and OAuth endpoints allow memory exhaustion through unbounded request bodies Assigned by GitHub_M | Oct 14, 2026 |
| CVE-2026-59951 | Medium 6.9 | MCP Python SDK: Unbounded Session Accumulation in StreamableHTTP Transport Enables Resource Exhaustion Assigned by GitHub_M | Oct 14, 2026 |
| CVE-2026-59950 | High 7.6 | MCP Python SDK: WebSocket server transport does not support Host/Origin validation Assigned by GitHub_M | Jul 15, 2026 |
| CVE-2026-52870 | High 7.6 | MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks Assigned by GitHub_M | Jul 15, 2026 |
| CVE-2026-52869 | High 7.1 | MCP Python SDK: HTTP transports serve session requests without verifying the authenticated principal Assigned by GitHub_M | Jul 15, 2026 |
| CVE-2025-66416 | High 7.6 | DNS Rebinding Protection Disabled by Default in Model Context Protocol Python SDK for Servers Running on Localhost Assigned by GitHub_M | Dec 2, 2025 |
CVSS is the assigning CNA's score where it gives one, otherwise NVD's. The healthcare tag is a documented heuristic (a list of clinical and health IT vendors, and clinical terms in the description), not a classification. The CVE record is authoritative.