CVEvulnerability

CVE-2026-87016

8.1 HIGH Published 2026-09-09 Modified 2026-09-15 Official page ↗
Status
Analyzed
Published
2026-09-09
Last modified
2026-09-15
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-155, CWE-287

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 configurations

• openwebui open webui (>= 0.6.41 < 0.11.1)

Related

Weakness · CWE (2)

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

References