Information disclosure in Open WebUI - CVE-2026-45351
Published: May 11, 2026
Vulnerability identifier: #VU130944
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-45351
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to exposure of sensitive information in the /api/models endpoint when handling authenticated requests for model listings. A remote user can send a request to the endpoint to disclose sensitive information.
The response reveals system prompts configured by an administrator for available models.
Affected software
Open WebUI
How to mitigate CVE-2026-45351
Install security update from vendor's website.
Open WebUI - update to 0.8.9