CVE-2026-87014: Open WebUI role demotion session caching authorization flaw

# CVE-2026-87014: Open WebUI role demotion session caching authorization flaw

https://gcdradar.vercel.app/incidents/cve-2026-87014-open-webui-role-demotion-session-caching-auth · AIR-2026-0923 · closed 2026-09-09

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-09-09 (happened 2026-09-10)
- AI role: Attack on AI
- Products: Open WebUI
- CVE ids: CVE-2026-87014
- CVSS: 6.5

## Summary

An Open WebUI vulnerability allowed a demoted admin user to retain read and write access to notes via cached Socket.IO sessions. The vendor addressed the issue in security patches.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-09-10: CVE-2026-87014: Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes (https://github.com/advisories/GHSA-wjwr-xfp9-r66p)
- 2026-09-09: CVE-2026-87014: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. (https://nvd.nist.gov/vuln/detail/CVE-2026-87014)

## Sources

- 2026-09-09 NVD: CVE-2026-87014: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. https://nvd.nist.gov/vuln/detail/CVE-2026-87014
- 2026-09-10 GitHub Advisory Database: CVE-2026-87014: Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes https://github.com/advisories/GHSA-wjwr-xfp9-r66p

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.