CVE-2026-25945 EV2GO ev2go.io Improper Restriction of Excessive Authentication Attempts

High 8.7 Published 26 Feb 2026 Updated 31 Mar 2026

Attackers can perform brute-force attacks or denial-of-service on EV2GO's WebSocket API due to missing authentication rate limits.

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-2026-25945?

CVE-2026-25945 is a high-severity denial of service vulnerability in ev2go.io, published on 26 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access.

Weakness: CWE-307

Which versions are affected by CVE-2026-25945?

It affects 1 product.

Products include Ev2go Ev2go.io.

How do I fix CVE-2026-25945?

No fix has been published for CVE-2026-25945 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-25945 being exploited?

There is no known exploitation of CVE-2026-25945 in the wild and no public exploit code.

Sources

Also known as GHSA-j4fg-v368-8838.