TypeSpec: Unauthenticated Remote Shutdown of Spector Mock Server via POST /.admin/stop — GHSA-7Q9C-HPX7-9CWM

Summary

### Summary `@typespec/spector` registers a `POST /.admin/stop` HTTP route with no authentication, authorization token, Origin check, or IP-source restriction. Any network-reachable client can send a single unauthenticated POST request to terminate the mock server process. Because the server binds to `0.0.0.0` by default (all interfaces), this endpoint is exposed to any host that can reach the server's port—not…

Timeline

Published by source

2026-09-04

Risk context

• Reported severity or threat level: high.
• Reported CVSS score: 7.5 out of 10.
• Review exposure for the affected product or family: npm: @typespec/spector.

Product

npm: @typespec/spector

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source

Evidence and provenance

Canonical advisory ID

GHSA-7Q9C-HPX7-9CWM

Source

GitHub

Vendor

GitHub

Published by source

2026-09-04

Last source activity

2026-09-04

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.