What is CVE-2026-45316?

CVE-2026-45316 is a low-severity vulnerability in Open-webui, classified under Incorrect Authorization. CVSS score: 3.5/10. Published 2026-05-15.

How severe is CVE-2026-45316?

Low severity. CVSS v3 base score is 3.5 out of 10.

Auth bypass in Open-webui

CVE-2026-45316

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the POST /api/v1/notes/{id}/pin endpoint performs a write operation (toggling the is_pinned field) but only checks for read…

Vulnerability class: Broken Access Control

EPSS: 0.000 (1.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.

Affected products

Open-webui — versions < 0.9.3
Openwebui Open_webui

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

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

Frequently asked questions

What is CVE-2026-45316?: CVE-2026-45316 is a low-severity vulnerability in Open-webui, classified under Incorrect Authorization. CVSS score: 3.5/10. Published 2026-05-15.
How severe is CVE-2026-45316?: Low severity. CVSS v3 base score is 3.5 out of 10.