CVE-2026-44558
Modified Modified - Updated After Analysis
BaseFortify

Publication date: 2026-05-15

Last updated on: 2026-05-19

Assigner: GitHub, Inc.

Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the channel router does not call filter_allowed_access_grants on either create or update paths. A non-admin user who can create group channels (or who owns a channel) can submit arbitrary access grants — including public wildcard grants — and those grants are stored verbatim, bypassing the admin's permission framework. This vulnerability is fixed in 0.9.0.
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Meta Information
Published
2026-05-15
Last Modified
2026-05-19
Generated
2026-06-10
EPSS Evaluated
2026-06-08
NVD
CVE-2026-44558
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openwebui open_webui to 0.9.0 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
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