# CVE-2026-87016

## Summary

- **CVE ID:** CVE-2026-87016
- **Severity:** HIGH
- **CVSS Score:** 8.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-155, CWE-287
- **Published:** Sep 9, 2026
- **Last Modified:** Sep 9, 2026

## Description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.41 until 0.11.1, get_user_by_oauth_sub and get_user_by_scim_external_id in backend/open_webui/models/users.py used JSON contains matching that compiled to SQL LIKE substring matching on SQLite. An OAuth subject containing percent or underscore wildcard characters could resolve to a different stored identity, potentially selecting an administrator account and issuing the attacker that account's session; PostgreSQL deployments were not affected. This issue is fixed in version 0.11.1.

## Affected Products

- open-webui — open-webui (>= 0.6.41, < 0.11.1)

## References

- [CNA](https://github.com/open-webui/open-webui/security/advisories/GHSA-wpmr-8h3q-fwj7)
- [CNA](https://github.com/open-webui/open-webui/pull/28624)
- [CNA](https://github.com/open-webui/open-webui/commit/73c1f5806aeb6345dad5de8f5aa26d1f3d0bef80)
- [CNA](https://github.com/open-webui/open-webui/releases/tag/v0.11.1)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._