CVE-2026-10056
CORS misconfiguration in Nx Witness VMS allows session token exfiltration via cross-origin request
Description
CORS misconfiguration in the REST API of Network Optix Nx Witness VMS before version 6.1.2, when running in the default Standard security mode, on Linux and Windows allows an unauthenticated remote attacker to steal the session token of an authenticated user and perform Administrator Account Takeover via a malicious cross-origin web page visited by the victim. The High security mode is not affected.Workaround: For existing installations running in Standard security mode, set Access-Control-Allow-Credentials to false via the REST API: PATCH /rest/v2/system/settings with body {"supportedOrigins": "null"}. Alternatively, select High security level during initial setup. Solution: Update to Nx Witness VMS version 6.1.2 or later, in which Access-Control-Allow-Credentials is set to false in the default Standard security configuration.
INFO
Published Date :
May 29, 2026, 9:16 a.m.
Last Modified :
July 21, 2026, 12:10 p.m.
Remotely Exploit :
Yes !
Source :
96d4e157-0bf0-48b3-8efd-382c68caf4e0
Affected Products
The following products are affected by CVE-2026-10056
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 96d4e157-0bf0-48b3-8efd-382c68caf4e0 |
Solution
- Update Nx Witness VMS to version 6.1.2 or later.
- Set Access-Control-Allow-Credentials to false via API.
- Select High security level during initial setup.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-10056.
| URL | Resource |
|---|---|
| https://support.networkoptix.com/hc/en-us/articles/39254208939159-How-to-Enable-CORS-Validation |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-10056 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-10056
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-10056 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-10056 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Jul. 21, 2026
Action Type Old Value New Value Added Translation Title: Nx Witness VMS de Network Optix, Description: Mala configuración de CORS en la API REST de Network Optix Nx Witness VMS anterior a la versión 6.1.2, cuando se ejecuta en el modo de seguridad 'Estándar' predeterminado, en Linux y Windows permite a un atacante remoto no autenticado robar el token de sesión de un usuario autenticado y realizar una 'Toma de Control de Cuenta de Administrador' a través de una página web maliciosa de origen cruzado visitada por la víctima. El modo de seguridad 'Alto' no se ve afectado. Solución alternativa: Para instalaciones existentes que se ejecutan en el modo de seguridad 'Estándar', establezca 'Access-Control-Allow-Credentials' en 'false' a través de la API REST: PATCH /rest/v2/system/settings con el cuerpo {"supportedOrigins": "null"}. Alternativamente, seleccione el nivel de seguridad 'Alto' durante la configuración inicial. Solución: Actualice a la versión 6.1.2 o posterior de Nx Witness VMS, en la que 'Access-Control-Allow-Credentials' se establece en 'false' en la configuración de seguridad 'Estándar' predeterminada. -
CVE Modified by 96d4e157-0bf0-48b3-8efd-382c68caf4e0
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Network Optix', 'product': 'Nx Witness VMS', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '6.1.2', 'versionType': 'semver'}], 'platforms': ['Linux', 'Windows', 'MacOS']}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-10056', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-05-29T14:58:57.225339Z'} -
New CVE Received by 96d4e157-0bf0-48b3-8efd-382c68caf4e0
May. 29, 2026
Action Type Old Value New Value Added Description CORS misconfiguration in the REST API of Network Optix Nx Witness VMS before version 6.1.2, when running in the default Standard security mode, on Linux and Windows allows an unauthenticated remote attacker to steal the session token of an authenticated user and perform Administrator Account Takeover via a malicious cross-origin web page visited by the victim. The High security mode is not affected.Workaround: For existing installations running in Standard security mode, set Access-Control-Allow-Credentials to false via the REST API: PATCH /rest/v2/system/settings with body {"supportedOrigins": "null"}. Alternatively, select High security level during initial setup. Solution: Update to Nx Witness VMS version 6.1.2 or later, in which Access-Control-Allow-Credentials is set to false in the default Standard security configuration. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-942 Added Reference https://support.networkoptix.com/hc/en-us/articles/39254208939159-How-to-Enable-CORS-Validation