CVE-2026-20748 HIGH

CVE-2026-20748: Everon api.everon.io Insufficient Session Expiration

Vendor Everon
Product api.everon.io
Weakness CWE-613 · Insufficient session expiration
Published March 6, 2026
Last update March 10, 2026

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 6, 2026 CVE published
March 10, 2026 Record updated