Authentication bypass via static fallback JWT secret
Published Feb 3, 2026 · Updated Feb 3, 2026
Hard-coded cryptographic key use in frangoteam FUXA before 1.3.0 allows remote attackers to forge administrator JWTs. In server/api/jwt-helper.js, init() retains the static fallback signing secret when no secretCode is configured, and verifyToken() trusts JWT claims validated with that key. Authentication must be enabled without a custom secret; knowledge of the fallback value grants administrative access to protected project data.
Summary
What happened
Hard-coded cryptographic key use in frangoteam FUXA before 1.3.0 allows remote attackers to forge administrator JWTs. In server/api/jwt-helper.js, init() retains the static fallback signing secret when no secretCode is configured, and verifyToken() trusts JWT claims validated with that key. Authentication must be enabled without a custom secret; knowledge of the fallback value grants administrative access to protected project data.
The record
- CVE
- CVE-2025-69971
- Published
- Feb 3, 2026
- Updated
- Feb 3, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-321, CWE-798, T1606
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Feb 3, 2026CVE publishedPublication date reported by the CVE source.
- Feb 3, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- FUXA hardcoded JWT secret authentication-bypass Nuclei templatefunctional · validated
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Technologies
Your stack
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Your stack
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