vulnerability

CVE-2026-87016

NVD HIGH 8.1 · published 2026-09-09 · 1 on the wire

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.41 until 0.11.1, get_user_by_oauth_sub and get_user_by_scim_external_id in backend/open_webui/models/users.py used JSON contains matching that compiled to SQL LIKE substring matching on SQLite. An OAuth subject containing percent or underscore wildcard characters could resolve to a different stored identity, potentially selecting an administrator account and issuing the attacker that account's session; PostgreSQL deployments were not affected. This issue is fixed in version 0.11.1.

Exploited in the wild

Not on KEV

Not in CISA's Known Exploited Vulnerabilities catalogue as of the last daily pull. Absence is not proof of safety.

EPSS · 30-day forecast

Chance of exploitation in the next 30 days, 28th percentile of all CVEs. A forecast; KEV outranks it.

CVSS · NVD

8.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Internet exposure

—

No exposure census on this CVE's dispatches.

Adversaries named alongside it

actors our dispatches named in the same reporting — association, not attribution

WildCard1

On the wire1

11 SepGHSA-wpmr-8h3q-fwj7: Open WebUI: Sign-in as another user via wildcard characters in the OAuth subject claim on SQLiteVULN

References

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