Critical severity · published Feb 27, 2026
CVE-2026-26290
EV Energy ev.energy Insufficient Session Expiration
9.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EV
ev.energy · EV Energy
All versions · source: vendor, NVD
In the news
AdvisoryCritical
EV Energy ev.energy
View CSAF
Summary
Successful exploitation of these vulnerabilities could enable attackers to gain unauthorized administrative control over vulnerable charging stations or disrupt charging services through denial-of-service attacks.
The following versions of EV Energy ev.energy are affected:
ev.energy vers:all/* (CVE-2026-27772, CVE-2026-24445, CVE-2026-26290, CVE-2026-25774)
CVSS
Vendor
Equipment
Vulnerabilities
v3 9.4
EV Energy
EV Energy ev.energy
Missing Authentication for Critical Function, Improper Restriction of Excessive Authentication Attempts, Insufficient Session Expiration, Insufficiently Protected Credentials
Background
Critical Infrastructure Sectors: Energy, Transportation Systems
Countries/Areas Deployed: Worldwide
Company Headquarters Location: United Kingdom
Vulnerabilities
Expand All +
CVE-2026-27772
WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.
View CVE Details
Aff...
Feb 26, 2026·CISA Advisories
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26290
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26290
Third Party Advisory
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-07.json
Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-07
Product
https://www.ev.energy/en-us
More from ev.energy
9.8
CVE-2026-24445
EV Energy ev.energy Improper Restriction of Excessive Authentication Attempts
9.8
CVE-2026-27772
EV Energy ev.energy Missing Authentication for Critical Function
5.3
CVE-2026-25774
EV Energy ev.energy Insufficiently Protected Credentials
