CVE-2026-26290 EV Energy ev.energy Insufficient Session Expiration

Medium 6.9 Published 27 Feb 2026 Updated 31 Mar 2026

Attackers can hijack EV charging sessions or cause denial of service by exploiting predictable WebSocket session identifiers in the EV Energy backend.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-26290?

CVE-2026-26290 is a medium-severity authentication bypass vulnerability in ev.energy, published on 27 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-613

Which versions are affected by CVE-2026-26290?

It affects 1 product.

Products include Ev.energy Ev.energy.

How do I fix CVE-2026-26290?

No fix has been published for CVE-2026-26290 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-26290 being exploited?

There is no known exploitation of CVE-2026-26290 in the wild and no public exploit code.

Sources

Also known as GHSA-cc2q-7r88-56q9.