CVE-2026-45316

Published: May 15, 2026Modified: Jun 17, 2026

3.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Exploitability: 2.1 / Impact: 1.4

Source: security-advisories@github.com (Secondary)

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the POST /api/v1/notes/{id}/pin endpoint performs a write operation (toggling the is_pinned field) but only checks for read permission. Users with read-only access to a shared note can pin/unpin it, which is a state-modifying action that should require write permission. This vulnerability is fixed in 0.9.3.

Affected (1)

Products: Openwebui: Open Webui

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Openwebui Open Webui	Before 0.9.3

Related CWEs

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (2)

https://github.com/open-webui/open-webui/security/advisories/GHSA-jx2x-j75f-xq3j

Source: security-advisories@github.com

ExploitMitigationVendor Advisory

https://github.com/open-webui/open-webui/security/advisories/GHSA-jx2x-j75f-xq3j

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitMitigationVendor Advisory

Timeline

No history available yet.