CVE-2026-27649

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-27649
The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints to connect using the same session identifier. This implementation results in predictable session identifiers and enables session hijacking or shadowing, where the most recent connection displaces the legitimate charging station and receives backend commands intended for that station. This vulnerability may allow unauthorized users to authenticate as other users or enable a malicious actor to cause a denial-of-service condition by overwhelming the backend with valid session requests.

7.3 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-078-06.json Product
https://www.cisa.gov/news-events/ics-advisories/icsa-26-078-06 US Government Resource Third Party Advisory
https://www.ctek.com/support Product
Configurations

Configuration 1 (hide)

cpe:2.3:a:ctek:charge_portal:-:*:*:*:*:*:*:*
History

06 May 2026, 15:16

Type Values Removed Values Added
CPE cpe:2.3:a:ctek:charge_portal:-:*:*:*:*:*:*:*
References () https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-078-06.json - () https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-078-06.json - Product
References () https://www.cisa.gov/news-events/ics-advisories/icsa-26-078-06 - () https://www.cisa.gov/news-events/ics-advisories/icsa-26-078-06 - US Government Resource, Third Party Advisory
References () https://www.ctek.com/support - () https://www.ctek.com/support - Product
First Time Ctek
Ctek charge Portal
Summary
  • (es) El backend de WebSocket utiliza identificadores de estación de carga para asociar sesiones de forma única, pero permite que múltiples puntos finales se conecten utilizando el mismo identificador de sesión. Esta implementación resulta en identificadores de sesión predecibles y permite el secuestro de sesión o shadowing, donde la conexión más reciente desplaza a la estación de carga legítima y recibe comandos del backend destinados a esa estación. Esta vulnerabilidad puede permitir a usuarios no autorizados autenticarse como otros usuarios o permitir que un actor malicioso cause una condición de denegación de servicio al sobrecargar el backend con solicitudes de sesión válidas.

20 Mar 2026, 23:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-20 23:16

Updated : 2026-05-06 15:16

NVD link : CVE-2026-27649

Mitre link : CVE-2026-27649

CVE.ORG link : CVE-2026-27649

JSON object : View

Products Affected

ctek

  • charge_portal
CWE
CWE-613

Insufficient Session Expiration