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CVE-2025-15603

MEDIUM CVSS 4.0: 6.3 EPSS 0.04%
Updated Mar 09, 2026
Parameter Value
CVSS 6.3 (MEDIUM)
Type CWE-330, CWE-310 (Cryptographic Issues)
Public PoC No

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 insufficiently random values.

It is possible to launch the attack remotely. The attack requires a high level of complexity. The exploitability is told to be difficult.

The exploit has been disclosed publicly and may be used.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0