Technology · PyPI
fastmcp (PyPI) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 6 vulnerabilities in fastmcp (PyPI): 0 in the last 7 days and 2 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2025-62801, was published on 7 July 2026.
- Last 7 days
- 0
- Last 90 days
- 2
- Critical, all time
- 1
- Exploited in the wild
- 0
About fastmcp (PyPI)
A Python framework for building Model Context Protocol (MCP) servers.
Latest fastmcp (PyPI) vulnerabilities
- CVE-2025-62801: PYSEC-2026-1365 - FastMCP vulnerable to windows command injection in FastMCP Cursor installer via server_namemediumCVSS 4EPSS 0.2%
- CVE-2025-62800: PYSEC-2026-1364 - FastMCP vulnerable to reflected XSS in client's callback pagemediumCVSS 4EPSS 0.3%
- CVE-2026-27124: FastMCP confused deputy vulnerability in OAuthProxy callbackmediumCVSS 6.1EPSS 0.3%
- CVE-2025-64340: PrefectHQ FastMCP command injection in CLI install on WindowsmediumCVSS 6.7EPSS 0.7%
- CVE-2026-32871: PrefectHQ FastMCP path traversal and SSRF in OpenAPIProvidercriticalCVSS 10EPSS 1.4%
- CVE-2025-69196: PrefectHQ FastMCP improper resource handling in OAuth ProxymediumCVSS 6.5EPSS 0.4%
Most severe fastmcp (PyPI) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-32871: PrefectHQ FastMCP path traversal and SSRF in OpenAPIProvidercriticalCVSS 10EPSS 1.4%
- CVE-2025-64340: PrefectHQ FastMCP command injection in CLI install on WindowsmediumCVSS 6.7EPSS 0.7%
- CVE-2025-69196: PrefectHQ FastMCP improper resource handling in OAuth ProxymediumCVSS 6.5EPSS 0.4%
- CVE-2026-27124: FastMCP confused deputy vulnerability in OAuthProxy callbackmediumCVSS 6.1EPSS 0.3%
- CVE-2025-62800: PYSEC-2026-1364 - FastMCP vulnerable to reflected XSS in client's callback pagemediumCVSS 4EPSS 0.3%
- CVE-2025-62801: PYSEC-2026-1365 - FastMCP vulnerable to windows command injection in FastMCP Cursor installer via server_namemediumCVSS 4EPSS 0.2%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 2 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/fastmcp.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "fastmcp (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/fastmcp, 26 September 2026.