High 7.1Published Sep 9, 2026

CVE-2026-87999Open WebUI: Any authenticated user can reach the Azure platform channel via server-side web fetch

Updated under an hour ago (2026-10-19 08:30 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for open-webui

Exploited in the last 30 days

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.11.1, POST /api/v1/retrieval/process/web and POST /api/v1/retrieval/process/web/search in backend/open_webui/retrieval/web/utils.py treated Python's globally routable address classification as proof that a destination was external. An authenticated user could make an Azure-hosted instance fetch and return content from 168.63.129.16, the Azure platform channel, as well as other reserved ranges that the standard classification did not reject. This issue is fixed in version 0.11.1.

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Sep 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

open-webui open-webui open_webui:open_webui (from the name)	before 0.11.1	CNA record
openwebui open_webui openwebui:open_webui	before 0.11.1	NVD

References

https://github.com/open-webui/open-webui/security/advisories/GHSA-34r3-9m95-vq73x-refsource-confirm, exploit, vendor-advisory
https://github.com/open-webui/open-webui/pull/27823x-refsource-misc, issue-tracking, patch
https://github.com/open-webui/open-webui/commit/e3e4bd87df6fc629e7e22081d980d55a7632b8b7x-refsource-misc, patch
https://github.com/open-webui/open-webui/releases/tag/v0.11.1x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.