CVE-2025-69971: @frangoteam/fuxa FUXA Has A Hardcoded Fallback Vulnerability

HIGH
Advisory Identifier: GHSA-c8m8-3jcr-6rj5
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CVSS 8.1
CWE-321 CWE-798
Published
Advisory Summary

CVE-2025-69971 is a HIGH (CVSS 8.1) fuxa has a hardcoded fallback vulnerability (CWE-321: Use of Hard-coded Cryptographic Key) affecting @frangoteam/fuxa libraries in the npm ecosystem. The issue involves fuxa has a hardcoded fallback jwt signing secret. Remediation is available by upgrading affected packages to version 1.3.0.

CVE-2025-69971 at a Glance

CVE Identifier CVE-2025-69971
GHSA Identifier GHSA-c8m8-3jcr-6rj5
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-321: Use of Hard-coded Cryptographic Key
Affected Product @frangoteam/fuxa
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2025-69971

To remediate this vulnerability, upgrade all affected @frangoteam/fuxa dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@frangoteam/fuxa fixed: 1.3.0 
npm install @frangoteam/fuxa@1.3.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls @frangoteam/fuxa

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-69971, inspect your project dependencies using npm:

npm ls @frangoteam/fuxa

Analyze the terminal output to locate any version of @frangoteam/fuxa in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.3.0), your application is affected.

Note: The npm ls @frangoteam/fuxa command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-321: Use of Hard-coded Cryptographic Key, where the product uses a hard-coded, unchangeable cryptographic key. In @frangoteam/fuxa, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

FUXA used a static fallback JWT signing secret (`frangoteam751`) when no `secretCode` was configured. If authentication was enabled without explicitly setting a custom secret, an attacker who knew the default value could forge valid JWT tokens and bypass authentication. This issue has been addressed in version 1.3.0 by removing the static fallback and generating a secure random secret when no `secretCode` is provided.

CVE-2025-69971 Affected @frangoteam/fuxa Versions

1 component(s)
Fixed Versions:
1.3.0
Product / Package Ecosystem Affected Versions Fixed Version
@frangoteam/fuxa
npm/@frangoteam/fuxa
npm
< 1.3.0
1.3.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/frangoteam/FUXA/security/advisories/GHSA-c8m8-3jcr-6rj5
NVD — CVE-2025-69971 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-69971
@frangoteam/fuxa Source Repository REPOSITORY
https://github.com/frangoteam/FUXA
@frangoteam/fuxa Source Repository REPOSITORY
https://github.com/frangoteam/FUXA/blob/master/server/api/jwt-helper.js

Frequently Asked Questions

What is CVE-2025-69971?
CVE-2025-69971 is a security vulnerability in @frangoteam/fuxa involving FUXA has a hardcoded fallback JWT signing secret under CWE-321: Use of Hard-coded Cryptographic Key.
Which @frangoteam/fuxa versions are affected?
Affected versions include releases prior to 1.3.0 across affected packages: @frangoteam/fuxa.
What version fixes CVE-2025-69971?
Upgrading to 1.3.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @frangoteam/fuxa affected?
Yes, @frangoteam/fuxa is affected in releases prior to 1.3.0. Upgrade your dependency to 1.3.0 or later.
What is the CVSS score of CVE-2025-69971?
CVE-2025-69971 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2025-69971?
CVE-2025-69971 is classified under CWE-321: Use of Hard-coded Cryptographic Key (The product uses a hard-coded, unchangeable cryptographic key.).
How can I check npm dependencies for CVE-2025-69971?
Run the dependency tree command: 'npm ls @frangoteam/fuxa'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-c8m8-3jcr-6rj5",
  "modified" : "2026-05-11T16:22:16Z",
  "published" : "2026-03-07T02:31:18Z",
  "aliases" : [ "CVE-2025-69971" ],
  "summary" : "FUXA has a hardcoded fallback JWT signing secret",
  "details" : "FUXA used a static fallback JWT signing secret (`frangoteam751`) when no `secretCode` was configured.\n\nIf authentication was enabled without explicitly setting a custom secret, an attacker who knew the default value could forge valid JWT tokens and bypass authentication.\n\nThis issue has been addressed in version 1.3.0 by removing the static fallback and generating a secure random secret when no `secretCode` is provided.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@frangoteam/fuxa"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.3.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.2.11"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/frangoteam/FUXA/security/advisories/GHSA-c8m8-3jcr-6rj5"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-69971"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/frangoteam/FUXA"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/frangoteam/FUXA/blob/master/server/api/jwt-helper.js"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-321", "CWE-798" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-07T02:31:18Z",
    "nvd_published_at" : null
  }
}