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CVE-2026-81095: Timescale pg-aiguide through 0.5.0 DNS Rebinding via Disabled Host Header Allow-List

Medium · CVSS 6.8 (CVSS 3.1)EPSS 0.22%, 12th percentilePublished Updated Assigner: VulnCheck

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.

Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N · CWE-346

Tracked companies

Timescale (Tiger Data)

Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

timescale: pg-aiguide

References

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