What is CVE-2026-44563?

CVE-2026-44563 is a medium-severity vulnerability in Open-webui, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-05-15.

How severe is CVE-2026-44563?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Open-webui

CVE-2026-44563

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the /api/generate, /api/embed, /api/embeddings, and /api/show endpoints accept any model name from the user and forward the…

Vulnerability class: Broken Access Control

EPSS: 0.000 (12.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L.

Affected products

Open-webui — versions < 0.9.0
Openwebui Open_webui

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

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

Frequently asked questions

What is CVE-2026-44563?: CVE-2026-44563 is a medium-severity vulnerability in Open-webui, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-05-15.
How severe is CVE-2026-44563?: Medium severity. CVSS v3 base score is 5.4 out of 10.