CVE-2026-87016

Summary

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 Software

VendorProductVersion RangeStatus
open-webuiopen-webui>= 0.6.41, < 0.11.1affected

Weaknesses

  • CWE-155: CWE-155: Improper Neutralization of Wildcards or Matching Symbols
  • CWE-287: CWE-287: Improper Authentication

References