Search criteria
6 vulnerabilities found for fastmcp by jlowin
FKIE_CVE-2025-62801
Vulnerability from fkie_nvd - Published: 2025-10-28 22:15 - Updated: 2025-11-04 13:24
Severity ?
Summary
FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0, a command-injection vulnerability lets any attacker who can influence the server_name field of an MCP execute arbitrary OS commands on Windows hosts that run fastmcp install cursor. This vulnerability is fixed in 2.13.0.
References
| URL | Tags | ||
|---|---|---|---|
| security-advisories@github.com | https://github.com/jlowin/fastmcp/security/advisories/GHSA-rj5c-58rq-j5g5 | Exploit, Third Party Advisory | |
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | https://github.com/jlowin/fastmcp/security/advisories/GHSA-rj5c-58rq-j5g5 | Exploit, Third Party Advisory |
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FKIE_CVE-2025-62800
Vulnerability from fkie_nvd - Published: 2025-10-28 22:15 - Updated: 2025-11-07 01:49
Severity ?
Summary
FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0 have a reflected cross-site scripting vulnerability in the OAuth client callback page (oauth_callback.py) where unescaped user-controlled values are inserted into the generated HTML, allowing arbitrary JavaScript execution in the callback server origin. The issue is fixed in version 2.13.0.
References
| URL | Tags | ||
|---|---|---|---|
| security-advisories@github.com | https://github.com/jlowin/fastmcp/security/advisories/GHSA-mxxr-jv3v-6pgc | Exploit, Third Party Advisory | |
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | https://github.com/jlowin/fastmcp/security/advisories/GHSA-mxxr-jv3v-6pgc | Exploit, Third Party Advisory |
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CVE-2025-62801 (GCVE-0-2025-62801)
Vulnerability from cvelistv5 – Published: 2025-10-28 21:36 – Updated: 2025-10-29 14:54
VLAI?
Title
FastMCP vulnerable to windows command injection in FastMCP Cursor installer via server_name
Summary
FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0, a command-injection vulnerability lets any attacker who can influence the server_name field of an MCP execute arbitrary OS commands on Windows hosts that run fastmcp install cursor. This vulnerability is fixed in 2.13.0.
Severity ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
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CVE-2025-62800 (GCVE-0-2025-62800)
Vulnerability from cvelistv5 – Published: 2025-10-28 21:34 – Updated: 2025-10-29 15:52
VLAI?
Title
FastMCP vulnerable to reflected XSS in client's callback page
Summary
FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0 have a reflected cross-site scripting vulnerability in the OAuth client callback page (oauth_callback.py) where unescaped user-controlled values are inserted into the generated HTML, allowing arbitrary JavaScript execution in the callback server origin. The issue is fixed in version 2.13.0.
Severity ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
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CVE-2025-62801 (GCVE-0-2025-62801)
Vulnerability from nvd – Published: 2025-10-28 21:36 – Updated: 2025-10-29 14:54
VLAI?
Title
FastMCP vulnerable to windows command injection in FastMCP Cursor installer via server_name
Summary
FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0, a command-injection vulnerability lets any attacker who can influence the server_name field of an MCP execute arbitrary OS commands on Windows hosts that run fastmcp install cursor. This vulnerability is fixed in 2.13.0.
Severity ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
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CVE-2025-62800 (GCVE-0-2025-62800)
Vulnerability from nvd – Published: 2025-10-28 21:34 – Updated: 2025-10-29 15:52
VLAI?
Title
FastMCP vulnerable to reflected XSS in client's callback page
Summary
FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0 have a reflected cross-site scripting vulnerability in the OAuth client callback page (oauth_callback.py) where unescaped user-controlled values are inserted into the generated HTML, allowing arbitrary JavaScript execution in the callback server origin. The issue is fixed in version 2.13.0.
Severity ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
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