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← archivevulnerability · 24 Sep 2026 · 19:36 UTC

GHSA-fm8p-53ww-hf6w: DBHub HTTP transport DNS rebinding allows unauthenticated browser-origin SQL execution

VULNCVE-2026-61742source · GTH
HIGHCritical vulnerability
What to do
  • Critical severity — schedule an urgent patch.

last 60 dispatches · spectrum

### Summary DBHub `0.21.2` exposes an unauthenticated HTTP MCP endpoint when started with the documented HTTP transport mode, for example `--transport http --port 8080`. The HTTP server attempts to protect browser-origin access by checking whether the `Origin` hostname equals the `Host` hostname, then reflecting the validated `Origin` into `Access-Control-Allow-Origin`. This does not stop DNS rebinding. …

grounded ✓primary source ↗
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