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.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00039.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
vantage6 vantage6 affected
Version Status Constraints
< 4.11 affected —

Configuration 1 [-]

cpe:2.3:a:vantage6:vantage6:*:*:*:*:*:*:*:*

No data.

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Vendors Products
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Project Subscriptions

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-18201 Vantage6 Server JWT secret not cryptographically secure
Github GHSA Github GHSA GHSA-m3mq-f375-5vgh Vantage6 Server JWT secret not cryptographically secure
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/vantage6/vantage6/security/advisories/GHSA-m3mq-f375-5vgh cve-icon cve-icon
History

Wed, 17 Sep 2025 18:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:vantage6:vantage6:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Mon, 14 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00055}

 epss

{'score': 0.0006}

Fri, 13 Jun 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 12 Jun 2025 18:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Vantage6 Server JWT secret not cryptographically secure
Weaknesses CWE-330
References
Metrics cvssV4_0

{'score': 1.7, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-06-13T14:06:06.347Z

Reserved: 2025-04-17T20:07:08.556Z

Link: CVE-2025-43866

cve-icon Vulnrichment

Updated: 2025-06-13T14:06:00.500Z

cve-icon NVD

Status : Analyzed

Published: 2025-06-12T18:15:20.713

Modified: 2025-09-17T18:44:19.670

Link: CVE-2025-43866

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-06-24T09:51:38Z

Weaknesses