Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.5.7, a user can modify another user's model even if its visibility is set to Private. By changing the access permissions during editing, unauthorized access can be gained. This vulnerability is fixed in 0.5.7.
Published: 2026-05-15
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-gm54-m39w-grjp Open WebUI missing authorization check at the model update function - models from other users can be updated
History

Mon, 18 May 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Openwebui
Openwebui open Webui
CPEs cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*
Vendors & Products Openwebui
Openwebui open Webui

Mon, 18 May 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 15 May 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Open-webui
Open-webui open-webui
Vendors & Products Open-webui
Open-webui open-webui

Fri, 15 May 2026 21:30:00 +0000

Type Values Removed Values Added
Description Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.5.7, a user can modify another user's model even if its visibility is set to Private. By changing the access permissions during editing, unauthorized access can be gained. This vulnerability is fixed in 0.5.7.
Title Open WebUI: Missing authorization check at the model update function - models from other users can be updated
Weaknesses CWE-285
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}


Subscriptions

Open-webui Open-webui
Openwebui Open Webui
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-18T15:51:06.751Z

Reserved: 2026-05-11T21:40:08.177Z

Link: CVE-2026-45345

cve-icon Vulnrichment

Updated: 2026-05-18T15:49:10.681Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-15T22:16:54.923

Modified: 2026-06-17T10:51:56.547

Link: CVE-2026-45345

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-15T22:30:06Z

Weaknesses