CVE-2026-59223

medium

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.

References

https://github.com/open-webui/open-webui/security/advisories/GHSA-qg3f-8x3j-ggf2

https://github.com/open-webui/open-webui/releases/tag/v0.10.0

https://github.com/open-webui/open-webui/pull/25949

https://github.com/open-webui/open-webui/commit/087878ce848a4d828012068b5997dac480f43656

Details

Source: Mitre, NVD

Published: 2026-07-09

Updated: 2026-07-09

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Severity: Medium