{"cve":"CVE-2026-87014","nvd":{"published":"2026-09-09T21:17:06.327","modified":"2026-09-15T15:56:08.283","status":"Analyzed","description":"Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, role synchronization in backend/open_webui/routers/auths.py and backend/open_webui/utils/oauth.py updated an administrator's database role without invalidating the user record cached by backend/open_webui/socket/main.py. An administrator demoted through a trusted role header or OAuth role mapping could keep an already-open Socket.IO connection and continue reading or editing every user's collaborative notes until that connection closed. This issue is fixed in version 0.11.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","score":6.5},"cwes":["CWE-613","CWE-863"],"references":["https://github.com/open-webui/open-webui/commit/ce3c175e260709f359d7e6cbb3132f0572098b95","https://github.com/open-webui/open-webui/releases/tag/v0.11.1","https://github.com/open-webui/open-webui/security/advisories/GHSA-wjwr-xfp9-r66p","https://github.com/open-webui/open-webui/security/advisories/GHSA-wjwr-xfp9-r66p"],"products":["openwebui:open_webui"],"source":"nvd","synced_at":"2026-10-19T22:52:53.108888569+00:00"},"epss":{"cve":"CVE-2026-87014","score":0.00513,"percentile":0.43754,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wjwr-xfp9-r66p","url":"https://osv.dev/vulnerability/GHSA-wjwr-xfp9-r66p","summary":"Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes","modified":"2026-10-01T17:55:54.840330698Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":[">=0.9.0 <0.11.1"],"fixed":["0.11.1"]}]},{"id":"PYSEC-2026-4127","url":"https://osv.dev/vulnerability/PYSEC-2026-4127","summary":"Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes","modified":"2026-10-01T17:45:13.661698510Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":[">=0.9.0 <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."]}