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CVE-2026-45387

Open WebUI

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, when setting model permissions so that a group has read access to it, intending for other users to use it, those users also can read the model-s system prompt. However users may consider their system prompt confidential, so this is considered a security issue. This vulnerability is fixed in 0.9.5.

CVSS 4.3EPSS 0.22%Risk 0.44
View source
Published
2026-05-15 21:16:37
Affected versions
<0.9.5
Type
Core software
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N