High severity7.1NVD Advisory· Published Sep 9, 2026· Updated Sep 16, 2026
CVE-2026-87999
CVE-2026-87999
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
open-webuiPyPI | < 0.11.1 | 0.11.1 |
Affected products
3cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*range: <0.11.1
- (no CPE)range: <0.11.1
- (no CPE)
Patches
Vulnerability mechanics
References
6- github.com/open-webui/open-webui/commit/e3e4bd87df6fc629e7e22081d980d55a7632b8b7nvdPatchWEB
- github.com/open-webui/open-webui/pull/27823nvdIssue TrackingPatchWEB
- github.com/open-webui/open-webui/security/advisories/GHSA-34r3-9m95-vq73nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-34r3-9m95-vq73ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-87999ghsaADVISORY
- github.com/open-webui/open-webui/releases/tag/v0.11.1nvdRelease NotesWEB
News mentions
1- Open WebUI: 18 Vulnerabilities Disclosed, Patch Released in Version 0.11.1Vypr Intelligence · Sep 10, 2026