CVE-2025-43866
Published:June 12, 2025
Updated:May 17, 2026
vantage6 is an open-source infrastructure for privacy preserving analysis. The JWT secret key in the vantage6 server is auto-generated unless defined by the user. The auto-generated key is a UUID1, which is not cryptographically secure as it is predictable to some extent. This vulnerability is fixed in 4.11.0.
Affected Packages
https://github.com/vantage6/vantage6.git (GITHUB):
Affected version(s) >=version/0.0.0 <version/4.11.0Fix Suggestion:
Update to version version/4.11.0vantage6-server (PYTHON):
Affected version(s) >=0.0.0b0 <4.11.0Fix Suggestion:
Update to version 4.11.0vantage6-server (PYTHON):
Affected version(s) >=0.0.0 <4.11.0Fix Suggestion:
Update to version 4.11.0Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
5.6
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Use of Insufficiently Random Values
EPSS
Base Score:
0.27