CVE-2026-25894: Fuxa server Remote Code Execution Vulnerability

CRITICAL
Advisory Identifier: GHSA-32cc-x95p-fxcg
Share
CWE-321 CWE-1188
Published
Advisory Summary

CVE-2026-25894 is a CRITICAL remote code execution vulnerability (CWE-321: Use of Hard-coded Cryptographic Key) affecting Fuxa server libraries in the npm ecosystem. The issue involves fuxa unauthenticated remote code execution via hardcoded jwt secret in default configuration. Remediation is available by upgrading affected packages to version 1.2.10.

CVE-2026-25894 at a Glance

CVE Identifier CVE-2026-25894
GHSA Identifier GHSA-32cc-x95p-fxcg
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification CWE-321: Use of Hard-coded Cryptographic Key
Affected Product Fuxa server
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-25894

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

fuxa-server fixed: 1.2.10 
npm install fuxa-server@1.2.10
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 fuxa-server

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-25894, inspect your project dependencies using npm:

npm ls fuxa-server

Analyze the terminal output to locate any version of Fuxa server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.2.10), your application is affected.

Note: The npm ls fuxa-server 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 Fuxa server, 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

### Description An insecure default configuration in FUXA allows an unauthenticated, remote attacker to gain administrative access and execute arbitrary code on the server. This affects FUXA through version 1.2.9 when authentication is enabled, but the administrator JWT secret is not configured. This issue has been patched in FUXA version 1.2.10. ### Impact The FUXA documentation allows administrators to manually update a hardcoded JWT secret when enabling authentication. This feature was not available in the UI. This results in a fail-open security posture, where the application can report or appear to be operating in `secureEnabled` mode while still accepting tokens signed with a publicly known key. Exploitation allows an unauthenticated, remote attacker to forge JWTs to bypass all authentication mechanisms and obtain administrative access to the FUXA instance. With these elevated privileges, the attacker can interact with administrative APIs, including intended features designed for automation and scripting, to execute arbitrary code in the context of the FUXA service. Depending on deployment configuration and permissions, this may lead to full system compromise and could further expose connected ICS/SCADA environments to follow-on actions. ### Patches This issue has been patched in FUXA version 1.2.10. Users are strongly encouraged to update to the latest available release. ### Notes GitHub stated this vulnerability is identical to CVE-2025-69971, which was published against the repository out of band before coordinated disclosure concluded. CVE-2025-69971 is directionally correct, but the description is inaccurate. Please refer to this advisory for the proper description and affected versions.

CVE-2026-25894 Affected Fuxa server Versions

1 component(s)
Fixed Versions:
1.2.10
Product / Package Ecosystem Affected Versions Fixed Version
fuxa-server
npm/fuxa-server
npm
< 1.2.10
1.2.10

References

GitHub Advisory / Wiki ADVISORY
https://github.com/frangoteam/FUXA/security/advisories/GHSA-32cc-x95p-fxcg
NVD — CVE-2026-25894 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25894
Security Fix Commit FIX COMMIT
https://github.com/frangoteam/FUXA/commit/ea7b3df066f9fdef8ecdce318398ae40546bc50d
Fuxa server Source Repository REPOSITORY
https://github.com/frangoteam/FUXA
Fuxa server Release RELEASE
https://github.com/frangoteam/FUXA/releases/tag/v1.2.10

Frequently Asked Questions

What is CVE-2026-25894?
CVE-2026-25894 is a security vulnerability in Fuxa server involving FUXA Unauthenticated Remote Code Execution via Hardcoded JWT Secret in Default Configuration under CWE-321: Use of Hard-coded Cryptographic Key.
Which Fuxa server versions are affected?
Affected versions include releases prior to 1.2.10 across affected packages: fuxa-server.
What version fixes CVE-2026-25894?
Upgrading to 1.2.10 (or the latest patched release for your respective branch) resolves the vulnerability.
Is fuxa-server affected?
Yes, fuxa-server is affected in releases prior to 1.2.10. Upgrade your dependency to 1.2.10 or later.
What CWE is associated with CVE-2026-25894?
CVE-2026-25894 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-2026-25894?
Run the dependency tree command: 'npm ls fuxa-server'. 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-32cc-x95p-fxcg",
  "modified" : "2026-02-10T02:56:48Z",
  "published" : "2026-02-05T00:36:30Z",
  "aliases" : [ "CVE-2026-25894" ],
  "summary" : "FUXA Unauthenticated Remote Code Execution via Hardcoded JWT Secret in Default Configuration",
  "details" : "### Description\nAn insecure default configuration in FUXA allows an unauthenticated, remote attacker to gain administrative access and execute arbitrary code on the server. This affects FUXA through version 1.2.9 when authentication is enabled, but the administrator JWT secret is not configured. This issue has been patched in FUXA version 1.2.10.\n\n### Impact\nThe FUXA documentation allows administrators to manually update a hardcoded JWT secret when enabling authentication. This feature was not available in the UI. This results in a fail-open security posture, where the application can report or appear to be operating in `secureEnabled` mode while still accepting tokens signed with a publicly known key.\n\nExploitation allows an unauthenticated, remote attacker to forge JWTs to bypass all authentication mechanisms and obtain administrative access to the FUXA instance. With these elevated privileges, the attacker can interact with administrative APIs, including intended features designed for automation and scripting, to execute arbitrary code in the context of the FUXA service. Depending on deployment configuration and permissions, this may lead to full system compromise and could further expose connected ICS/SCADA environments to follow-on actions.\n\n### Patches\nThis issue has been patched in FUXA version 1.2.10. Users are strongly encouraged to update to the latest available release.\n\n### Notes\nGitHub stated this vulnerability is identical to CVE-2025-69971, which was published against the repository out of band before coordinated disclosure concluded. CVE-2025-69971 is directionally correct, but the description is inaccurate. Please refer to this advisory for the proper description and affected versions.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "fuxa-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.2.10"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.2.9"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/frangoteam/FUXA/security/advisories/GHSA-32cc-x95p-fxcg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-25894"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/frangoteam/FUXA/commit/ea7b3df066f9fdef8ecdce318398ae40546bc50d"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/frangoteam/FUXA"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/frangoteam/FUXA/releases/tag/v1.2.10"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1188", "CWE-321" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-05T00:36:30Z",
    "nvd_published_at" : "2026-02-09T23:16:05Z"
  }
}