What is CVE-2025-15603?

CVE-2025-15603 is a low-severity vulnerability in Open-webui, classified under Cryptographic Issues. CVSS score: 3.7/10. Published 2026-03-09.

How severe is CVE-2025-15603?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Open-webui

CVE-2025-15603

A security vulnerability has been detected in open-webui up to 0.6.16. Affected is an unknown function of the file backend/start_windows.bat of the component JWT Key Handler. Such manipulation of the argument WEBUI_SECRET_KEY leads to insu…

Vulnerability class: POODLE (CVE-2014-3566)

EPSS: 0.000 (13.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

N/a Open-webui — versions 0.6.0, 0.6.1, 0.6.2

Weakness classification (CWE)

References

VDB-349701 | open-webui JWT Key start_windows.bat random values (technical-description, vdb-entry)
VDB-349701 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
Submit #766444 | open-webui 6.16 Use of Hard-coded Cryptographic Key (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2025-15603?: CVE-2025-15603 is a low-severity vulnerability in Open-webui, classified under Cryptographic Issues. CVSS score: 3.7/10. Published 2026-03-09.
How severe is CVE-2025-15603?: Low severity. CVSS v3 base score is 3.7 out of 10.