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CVE-2026-88005

CVE-2026-88005 · Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.5 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • open-webui

    Versions
    • >= 0.8.0, < 0.9.0: Affected

    No fix published

  • open-webui PyPI

    Versions
    • 0.8.0
    • 0.8.1
    • 0.8.10
    • 0.8.11
    • 0.8.12
    • 0.8.2
    • 0.8.3
    • 0.8.4
    • 0.8.5
    • 0.8.6
    • 0.8.7
    • 0.8.8
    • 0.8.9
    Affected ranges
    • ECOSYSTEM: ≥ 0.8.0, < 0.9.0

    Update to 0.9.0

Original sources

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