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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

Everon shut down their platform on December 1st, 2025.

History

Fri, 06 Mar 2026 15:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Everon api.everon.io Insufficient Session Expiration
Weaknesses CWE-613
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-03-06T15:18:50.955Z

Reserved: 2026-02-25T15:28:27.138Z

Link: CVE-2026-20748

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-06T16:16:09.707

Modified: 2026-03-06T16:16:09.707

Link: CVE-2026-20748

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses