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CVE-2026-88001

CVE-2026-88001 · Open WebUI: Server-side fetches reach blocked and internal hosts via unvalidated HTTP redirect targets

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 0.9.5 until 0.11.1, server-side web fetches did not reapply WEB_FETCH_FILTER_LIST or private-address controls to HTTP redirect destinations when AIOHTTP_CLIENT_ALLOW_REDIRECTS was enabled. An authenticated user could redirect the aiohttp and requests fetch paths to excluded hosts, loopback, private networks, or cloud metadata services and route resulting content into web search, URL ingestion, page-fetch tools, or chat image processing. This issue is fixed in version 0.11.1.

CVSS 5.0 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • open-webui

    Versions
    • >= 0.9.5, < 0.11.1: Affected

    No fix published

  • open-webui PyPI

    Versions
    • 0.10.0
    • 0.10.1
    • 0.10.2
    • 0.11.0
    • 0.9.5
    • 0.9.6
    Affected ranges
    • ECOSYSTEM: ≥ 0.9.5, < 0.11.1

    Update to 0.11.1

Original sources

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