Nhost is an open source Firebase alternative with GraphQL. Prior to version 1.41.0, The Nhost CLI MCP server, when explicitly configured to listen on a network port, applies no inbound authentication and does not enforce strict CORS. This allows a malicious website visited on the same machine to issue cross-origin requests to the MCP server and invoke privileged tools using the developer's locally configured credentials. This vulnerability requires two explicit, non-default configuration steps to be exploitable. The default nhost mcp start configuration is not affected. This issue has been patched in version 1.41.0.
Metrics
Affected Vendors & Products
References
History
Tue, 07 Apr 2026 21:15:00 +0000
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Nhost cli
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| CPEs | cpe:2.3:a:nhost:cli:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Nhost cli
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| Metrics |
cvssV3_1
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Fri, 03 Apr 2026 10:15:00 +0000
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Nhost
Nhost nhost |
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| Vendors & Products |
Nhost
Nhost nhost |
Tue, 31 Mar 2026 15:15:00 +0000
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ssvc
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Tue, 31 Mar 2026 14:30:00 +0000
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| Description | Nhost is an open source Firebase alternative with GraphQL. Prior to version 1.41.0, The Nhost CLI MCP server, when explicitly configured to listen on a network port, applies no inbound authentication and does not enforce strict CORS. This allows a malicious website visited on the same machine to issue cross-origin requests to the MCP server and invoke privileged tools using the developer's locally configured credentials. This vulnerability requires two explicit, non-default configuration steps to be exploitable. The default nhost mcp start configuration is not affected. This issue has been patched in version 1.41.0. | |
| Title | Nhost CLI MCP Server: Missing Inbound Authentication on Explicitly Bound Network Port | |
| Weaknesses | CWE-306 CWE-942 |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-03-31T13:57:42.003Z
Updated: 2026-03-31T14:30:36.656Z
Reserved: 2026-03-26T15:57:52.323Z
Link: CVE-2026-34200
Updated: 2026-03-31T14:30:25.876Z
Status : Analyzed
Published: 2026-03-31T15:16:17.670
Modified: 2026-04-07T21:08:51.357
Link: CVE-2026-34200
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