What is CVE-2026-45301?

CVE-2026-45301 is a high-severity vulnerability in Open-webui, classified under Improper Access Control. CVSS score: 8.1/10. Published 2026-05-15.

How severe is CVE-2026-45301?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Open-webui

CVE-2026-45301

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.3.16, a missing permission check in all files related API endpoints allows any authenticated user to list, access and delete ever…

EPSS: 0.000 (10.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Open-webui — versions < 0.3.16
Openwebui Open_webui

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

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

Frequently asked questions

What is CVE-2026-45301?: CVE-2026-45301 is a high-severity vulnerability in Open-webui, classified under Improper Access Control. CVSS score: 8.1/10. Published 2026-05-15.
How severe is CVE-2026-45301?: High severity. CVSS v3 base score is 8.1 out of 10.