What is CVE-2026-54017?

CVE-2026-54017 is a high-severity vulnerability in Open-webui, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-06-18.

How severe is CVE-2026-54017?

High severity. CVSS v3 base score is 7.7 out of 10.

Path Traversal in Open-webui

CVE-2026-54017

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, the terminal-server reverse proxy in `backend/open_webui/routers/terminals.py` does not fully confine the user-controlled `p…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.005 (41.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

Open-webui — versions < 0.9.6
Openwebui Open_webui

Weakness classification (CWE)

CWE-22 — Path Traversal
CWE-918 — Server-Side Request Forgery (SSRF)

References

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

Frequently asked questions

What is CVE-2026-54017?: CVE-2026-54017 is a high-severity vulnerability in Open-webui, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-06-18.
How severe is CVE-2026-54017?: High severity. CVSS v3 base score is 7.7 out of 10.