CVE-2026-81095 - CERT CVE
ID CVE-2026-81095
Sažetak 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.
Reference
CVSS
Base: 6.8
Impact: 5.2
Exploitability:1.6
Pristup
VektorSloženostAutentikacija
NETWORK HIGH NONE
Impact
PovjerljivostCjelovitostDostupnost
HIGH HIGH NONE
CVSS vektor CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Zadnje važnije ažuriranje 27-08-2026 - 17:20
Objavljeno 27-08-2026 - 17:20