ADVISORY UNAUTH-2026-0003
TYPE exposure-class
PRODUCT Open WebUI
SEVERITY HIGH

HIGH

Open WebUI reachable from the internet

published 2026-08-05 · updated 2026-08-05

Why it matters

Your chat UI — including conversation history and any connected models — is reachable by anyone. If open signup is enabled, strangers can register their own accounts and use your models at your expense.

What a probe sees

GET :8080/api/config answers JSON naming "Open WebUI" (exact version included) without login.

Internet-facing exposure — observable from the public internet with GET-only probes (the same probes unauth.dev sends).

no-auth-by-design

In the wild

No honeypot telemetry for this service yet (in_the_wild: null in the dataset). We do not invent numbers. The block appears when the honeypot has real data.

Fix it

Fix card: open-webui-exposed →

References

https://docs.openwebui.com/getting-started/env-configuration/

Cite this record

unauth.dev advisory UNAUTH-2026-0003 — published 2026-08 · CC-BY 4.0

Canonical URL: https://unauth.dev/advisories/UNAUTH-2026-0003. This record is part of the unauth.dev advisory dataset, published under CC-BY 4.0: attribute "unauth.dev / Raúl Acedo". Schema: additive-only within v1; this id will never be renumbered or reused.