Auth bypass in Open-Webui
CVE-2026-45672
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.12, the /api/v1/utils/code/execute endpoint executes arbitrary Python code via Jupyter for any verified user, even when the admin has set ENABLE_CODE_EXECUTION=false. The feature gate is not enforced on the API endpoint — the configuration says "disabled" but code still executes. This vulnerability is fixed in 0.8.12.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
- Open-Webui — versions < 0.8.12
- Openwebui Open Webui
Weakness classification (CWE)
References
- github.com/open-webui/open-webui/security/advisories/GHSA-482j-2pq6-q5w4 (Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-45672?
- CVE-2026-45672 is a high-severity vulnerability in Open-Webui, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2026-05-15.
- How severe is CVE-2026-45672?
- High severity. CVSS v3 base score is 8.8 out of 10.