CVE-2026-59223
Open WebUI: `WEB_FETCH_FILTER_LIST` host allow/block filter bypassable via URL path and non-label-boundary matching
Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, WEB_FETCH_FILTER_LIST matching compared configured host entries against URL strings and non-label-boundary suffixes, allowing path-based blocklist bypasses such as !internal.example.com in a URL path and sibling-domain matches that did not reflect the intended hostname policy. This issue is fixed in version 0.10.0.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
openwebui
oss-projectaka open webui
open-webui
oss-projectaka open-webui/open-webui
Exploitability
Official Patch Available
References
https://github.com/open-webui/open-webui/commit/087878ce848a4d828012068b5997dac480f43656
github.com
https://github.com/open-webui/open-webui/pull/25949
github.com
https://github.com/open-webui/open-webui/releases/tag/v0.10.0
github.com
and 1 more references View all →
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