Timescale pg-aiguide through 0.5.0 DNS Rebinding via Disabled Host Header Allow-List
Published Aug 27, 2026
7.6
HIGHCVSS 4.0
EPSS 0.22%
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.
Affected products
-
- Version 0StatusaffectedConstraints<=0.5.0
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Timescale | PG-Aiguide | unaffected |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (3)
- https://github.com/timescale/pg-aiguide product
- https://github.com/timescale/pg-aiguide/pull/121 issue-trackingpatch
- https://www.vulncheck.com/advisories/timescale-pg-aiguide-through-0.5.0-dns-rebinding-via-disabled-host-header-allow-list third-party-advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/timescale/pg-aiguide | product | |
| https://github.com/timescale/pg-aiguide/pull/121 | issue-trackingpatch | |
| https://www.vulncheck.com/advisories/timescale-pg-aiguide-through-0.5.0-dns-rebinding-via-disabled-host-header-allow-list | third-party-advisory |
Change history (0)
No recorded changes yet.