CVE-2026-87999
highOpen WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform.
Vendor / product: Openwebui — open webui
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:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/open-webui/open-webui/commit/e3e4bd87df6fc629e7e22081d980d55a7632b8b7 security-advisories@github.com
- https://github.com/open-webui/open-webui/pull/27823 security-advisories@github.com
- https://github.com/open-webui/open-webui/releases/tag/v0.11.1 security-advisories@github.com
- https://github.com/open-webui/open-webui/security/advisories/GHSA-34r3-9m95-vq73 security-advisories@github.com
- https://github.com/open-webui/open-webui/security/advisories/GHSA-34r3-9m95-vq73 134c704f-9b21-4f2e-91b3-4a467353bcc0