CVE-2026-27764 Mobiliti e-mobi.hu Insufficient Session Expiration
Attackers can hijack EV charging sessions or cause denial of service by exploiting predictable WebSocket session identifiers in the Mobiliti e-mobi.hu 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-2026-27764?
CVE-2026-27764 is a medium-severity authentication bypass vulnerability in Mobiliti e-mobi.hu, published on 6 Mar 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-2026-27764?
It affects 1 product.
Products include Mvm Mobiliti E-Mobi.hu.
How do I fix CVE-2026-27764?
No fix has been published for CVE-2026-27764 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-2026-27764 being exploited?
There is no known exploitation of CVE-2026-27764 in the wild and no public exploit code.
Other vulnerabilities in Mobiliti e-mobi.hu
Sources
Also known as GHSA-26xr-j83g-4fmm.