CVE-2026-87999 PUBLISHED

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

Assigner: GitHub_M
Reserved: 09.09.2026 Published: 09.09.2026 Updated: 09.09.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
CVSS Score: 7.1

Product Status

Vendor open-webui
Product open-webui
Versions
  • Version < 0.11.1 is affected

References

Problem Types

  • CWE-918: Server-Side Request Forgery (SSRF) CWE