{"cve":"CVE-2026-87999","nvd":{"published":"2026-09-09T22:18:48.617","modified":"2026-09-16T15:13:49.077","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N","score":7.1},"cwes":["CWE-918"],"references":["https://github.com/open-webui/open-webui/commit/e3e4bd87df6fc629e7e22081d980d55a7632b8b7","https://github.com/open-webui/open-webui/pull/27823","https://github.com/open-webui/open-webui/releases/tag/v0.11.1","https://github.com/open-webui/open-webui/security/advisories/GHSA-34r3-9m95-vq73","https://github.com/open-webui/open-webui/security/advisories/GHSA-34r3-9m95-vq73"],"products":["openwebui:open_webui"],"source":"nvd","synced_at":"2026-10-19T22:52:53.108888569+00:00"},"epss":{"cve":"CVE-2026-87999","score":0.0036,"percentile":0.29794,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-34r3-9m95-vq73","url":"https://osv.dev/vulnerability/GHSA-34r3-9m95-vq73","summary":"Open WebUI: Any authenticated user can reach the Azure platform channel via server-side web fetch","modified":"2026-10-01T17:56:15.255962726Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":["<0.11.1"],"fixed":["0.11.1"]}]},{"id":"PYSEC-2026-4116","url":"https://osv.dev/vulnerability/PYSEC-2026-4116","summary":"Open WebUI: Any authenticated user can reach the Azure platform channel via server-side web fetch","modified":"2026-10-01T17:45:06.341427200Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":["<0.11.1"],"fixed":["0.11.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}