What is CVE-2026-45387?

CVE-2026-45387 is a medium-severity vulnerability in Open-webui, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-05-15.

How severe is CVE-2026-45387?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Information disclosure in Open-webui

CVE-2026-45387

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…

Vulnerability class: Information Disclosure

EPSS: 0.000 (7.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Open-webui — versions < 0.9.5
Openwebui Open_webui

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-45387?: CVE-2026-45387 is a medium-severity vulnerability in Open-webui, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-05-15.
How severe is CVE-2026-45387?: Medium severity. CVSS v3 base score is 4.3 out of 10.