Open WebUI: Sign-in as another user via wildcard characters in the OAuth subject claim on SQLite

Date Sep 10, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product PyPI ยท open-webui
CVE CVE-2026-87016
High-risk advisory CVE-2026-87016

Summary

Open WebUI: Sign-in as another user via wildcard characters in the OAuth subject claim on SQLite

Why it matters

GitHub has published a reviewed security advisory for open-webui. Prioritize it with other application dependency updates, especially because EPSS places it in the 26% percentile.

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. EPSS probability: 0.3%; percentile: 26%.

Sources

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