CVE-2026-25894
FUXA Unauthenticated Remote Code Execution via Hardcoded JWT Secret in Default Configuration
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. 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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
FUXA Unauthenticated Remote Code Execution via Hardcoded JWT Secret in Default Configuration
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. 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.
- Record
CVE-2026-25894- CVSS 4.0
- 9.5 Critical
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 - Weakness
- CWE-321, CWE-1188
- Updated
- 2026-11-02
EUVDEUVD-2026-6243
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. 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.
- Record
EUVD-2026-6243- CVSS 4.0
- 9.5 Critical
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-32cc-x95p-fxcg
FUXA Unauthenticated Remote Code Execution via Hardcoded JWT Secret in Default Configuration
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.
- Record
GHSA-32cc-x95p-fxcg- CVSS 4.0
- 9.5 Critical
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 - Weakness
- CWE-321, CWE-1188
- Updated
- 2026-11-02
NVD
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. 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.
- Record
CVE-2026-25894- CVSS 4.0
- 9.5 Critical
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-321, CWE-1188
- Updated
- 2026-11-02
OSV
FUXA Unauthenticated Remote Code Execution via Hardcoded JWT Secret in Default Configuration
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. 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.
- Record
CVE-2026-25894- CVSS 4.0
- 9.5 Critical
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 - Weakness
- CWE-1188, CWE-321
- Updated
- 2026-11-02
OSVGHSA-32cc-x95p-fxcg
FUXA Unauthenticated Remote Code Execution via Hardcoded JWT Secret in Default Configuration
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.
- Record
GHSA-32cc-x95p-fxcg- CVSS 4.0
- 9.5 Critical
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 - Weakness
- CWE-1188, CWE-321
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fuxa-servernpm |
through 1.2.9 | 1.2.10 |
fuxa-servernpm |
before 1.2.10 | 1.2.10 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-25894 is a critical vulnerability (CVSS 9.5) in Frangoteam Fuxa, published February 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.84%, the 58th percentile. Fixed in fuxa-server 1.2.10.
References
github.com/frangoteam/FUXA/security/advisories/GHSA-32cc-x95p-fxcg
nvd.nist.gov/vuln/detail/CVE-2026-25894