Open WebUI: Any authenticated user can reach internal services and cloud metadata via NAT64-encoded URLs

Date Aug 4, 2026

Type Vendor advisory

Signal High-risk advisory

Vendor / Product PyPI · open-webui

CVE CVE-2026-70485

High-risk advisory CVE-2026-70485

Summary

Open WebUI: Any authenticated user can reach internal services and cloud metadata via NAT64-encoded URLs

Why it matters

GitHub has published a reviewed security advisory for open-webui. Prioritize it with other application dependency updates.

Operator check

Check whether open-webui is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

GitHub Advisory GHSA-8x5v-cpv7-8jjp NVD — CVE-2026-70485 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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