pg-aiguide started its MCP HTTP transport without enabling the host allow-list the underlying SDK provides. src/httpServer.ts called the shared httpServerFactory helper and never set the DNS-rebinding-protection option, so the transport accepted a request whatever host it named. A page in a browser could therefore point a name it controlled at the address the server was bound to and drive the locally reachable MCP server through the visitor's browser. The protection was already available in the packaged transport and simply not turned on, so updating the dependency alone would not have closed it. Version 0.5.1 passes the option explicitly.
Metrics
Affected Vendors & Products
References
History
Sat, 29 Aug 2026 03:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Fri, 28 Aug 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Timescale
Timescale pg-aiguide |
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| Vendors & Products |
Timescale
Timescale pg-aiguide |
Thu, 27 Aug 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | pg-aiguide started its MCP HTTP transport without enabling the host allow-list the underlying SDK provides. src/httpServer.ts called the shared httpServerFactory helper and never set the DNS-rebinding-protection option, so the transport accepted a request whatever host it named. A page in a browser could therefore point a name it controlled at the address the server was bound to and drive the locally reachable MCP server through the visitor's browser. The protection was already available in the packaged transport and simply not turned on, so updating the dependency alone would not have closed it. Version 0.5.1 passes the option explicitly. | |
| Title | Timescale pg-aiguide through 0.5.0 DNS Rebinding via Disabled Host Header Allow-List | |
| Weaknesses | CWE-346 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-08-27T14:50:36.212Z
Updated: 2026-08-29T11:48:10.092Z
Reserved: 2026-08-26T16:00:32.000Z
Link: CVE-2026-81095
Updated: 2026-08-29T03:00:15.049Z
Status : Received
Published: 2026-08-27T17:20:51.803
Modified: 2026-08-29T04:18:06.850
Link: CVE-2026-81095
No data.