Is CVE-2026-88005 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-88005?

CVE-2026-88005 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-88005

Description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.9.0, Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without applying the email domain allowlist that the normal OAuth login callback enforces. An account whose email domain the login callback would refuse could still obtain a working session through this endpoint. This issue is fixed in version 0.9.0.