Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openwebui | Open Webui | < 0.9.5 |
Related Weaknesses (CWE)
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-h2cw-7qw9-56xrExploitVendor Advisory
- https://github.com/open-webui/open-webui/security/advisories/GHSA-h2cw-7qw9-56xrExploitVendor Advisory
FAQ
What is CVE-2026-45387?
CVE-2026-45387 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 o...
How severe is CVE-2026-45387?
CVE-2026-45387 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45387?
Check the references section above for vendor advisories and patch information. Affected products include: Openwebui Open Webui.