Open WebUI Exposes System Prompt to Regular User [Non-Admin] — GHSA-JH9G-8JQW-M2QX

Summary

### Summary _A regular user [non-admin] can view the system prompt of the model which is set by an admin._ ### Details _When a regular user [non-admin] logs into the application, a http://IP:8080/api/models? web request is initiated by the application and in response, it reveals the system prompt of available models set by admin on models pages in workspace affecting the confidentiality of application_ ### Affected…

Timeline

Published by source

2026-05-14

Last source activity

2026-05-19

Time from publication to latest source activity

5 days

Risk context

• Reported severity or threat level: medium.
• Reported CVSS score: 6.5 out of 10.
• Reported EPSS value: 0.00031.
• Review exposure for the affected product or family: pip: open-webui.

Product

pip: open-webui

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Evidence and provenance

Canonical advisory ID

GHSA-JH9G-8JQW-M2QX

Source

GitHub

Vendor

GitHub

Published by source

2026-05-14

Last source activity

2026-05-19

Additional identifiers

CVE-2026-45351

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.