CVE-2025-43866

Vantage6 Server JWT secret not cryptographically secure

Published Jun 12, 2025 CVSS 4.0 · 1.7 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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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
History
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'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00055}

epss

{'score': 0.0006}

Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 13, 2025, 2:06 PM
Reserved
Apr 17, 2025, 8:07 PM
Status
Analyzed
Published
Jun 12, 2025, 6:15 PM
Modified
Jun 17, 2026, 9:24 AM