What is CVE-2026-45395?

CVE-2026-45395 is a high-severity vulnerability in Open-webui, classified under Improper Privilege Management. CVSS score: 7.2/10. Published 2026-05-15.

How severe is CVE-2026-45395?

High severity. CVSS v3 base score is 7.2 out of 10.

Auth bypass in Open-webui

CVE-2026-45395

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, the tool update endpoint (POST /api/v1/tools/id/{id}/update) is missing the workspace.tools permission check that is present…

Vulnerability class: Privilege Escalation

EPSS: 0.001 (23.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Open-webui — versions < 0.9.5
Openwebui Open_webui

Weakness classification (CWE)

CWE-269 — Improper Privilege Management
CWE-862 — Missing Authorization

References

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

Frequently asked questions

What is CVE-2026-45395?: CVE-2026-45395 is a high-severity vulnerability in Open-webui, classified under Improper Privilege Management. CVSS score: 7.2/10. Published 2026-05-15.
How severe is CVE-2026-45395?: High severity. CVSS v3 base score is 7.2 out of 10.