CVE-2026-25752: Fuxa server FUXA Unauthenticated Remote Arbitrary Device Vulnerability

CRITICAL
Advisory Identifier: GHSA-ggxw-g3cp-mgf8
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CWE-862
Published
Advisory Summary

CVE-2026-25752 is a CRITICAL fuxa unauthenticated remote arbitrary device vulnerability (CWE-862: Missing Authorization) affecting Fuxa server libraries in the npm ecosystem. The issue involves fuxa unauthenticated remote arbitrary device tag write. Remediation is available by upgrading affected packages to version 1.2.10.

CVE-2026-25752 at a Glance

CVE Identifier CVE-2026-25752
GHSA Identifier GHSA-ggxw-g3cp-mgf8
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification CWE-862: Missing Authorization
Affected Product Fuxa server
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-25752

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-2026-25752, 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-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. 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

### Summary **Description** An authorization bypass vulnerability in FUXA allows an unauthenticated, remote attacker to modify device tags via WebSockets. This affects FUXA through version 1.2.9. This issue has been patched in FUXA version 1.2.10. ### Impact This affects all deployments, including those with `runtime.settings.secureEnabled` set to `true`. Exploitation allows an unauthenticated, remote attacker to bypass role-based access controls and overwrite arbitrary device tags or disable communication drivers, exposing connected ICS/SCADA environments to follow-on actions. This may allow an attacker to manipulate physical processes and disconnected devices from the HMI. ### Patches This issue has been patched in FUXA version 1.2.10. Users are strongly encouraged to update to the latest available release.

CVE-2026-25752 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-ggxw-g3cp-mgf8
NVD — CVE-2026-25752 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25752
Security Fix Commit FIX COMMIT
https://github.com/frangoteam/FUXA/commit/eb2d8a20964ce7acaa0f442a181390a5f726a1ae
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-2026-25752?
CVE-2026-25752 is a security vulnerability in Fuxa server involving FUXA Unauthenticated Remote Arbitrary Device Tag Write under CWE-862: Missing Authorization.
Which Fuxa server versions are affected?
Affected versions include releases prior to 1.2.10 across affected packages: fuxa-server.
What version fixes CVE-2026-25752?
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-2026-25752?
CVE-2026-25752 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check npm dependencies for CVE-2026-25752?
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-ggxw-g3cp-mgf8",
  "modified" : "2026-02-06T21:42:45Z",
  "published" : "2026-02-05T00:38:25Z",
  "aliases" : [ "CVE-2026-25752" ],
  "summary" : "FUXA Unauthenticated Remote Arbitrary Device Tag Write",
  "details" : "### Summary\n**Description**\nAn authorization bypass vulnerability in FUXA allows an unauthenticated, remote attacker to modify device tags via WebSockets. This affects FUXA through version 1.2.9. This issue has been patched in FUXA version 1.2.10.\n\n### Impact\nThis affects all deployments, including those with `runtime.settings.secureEnabled` set to `true`.\n\nExploitation allows an unauthenticated, remote attacker to bypass role-based access controls and overwrite arbitrary device tags or disable communication drivers, exposing connected ICS/SCADA environments to follow-on actions. This may allow an attacker to manipulate physical processes and disconnected devices from the HMI.\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.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/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-ggxw-g3cp-mgf8"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-25752"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/frangoteam/FUXA/commit/eb2d8a20964ce7acaa0f442a181390a5f726a1ae"
  }, {
    "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-862" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-05T00:38:25Z",
    "nvd_published_at" : "2026-02-06T19:16:10Z"
  }
}