Vulnerability · Published Feb 26, 2026 · Assigned by icscert
CVE-2026-20781CloudCharge cloudcharge.se Missing Authentication for Critical Function
Critical 9.4
In plain English
A critical-severity missing authentication in cloudcharge.se from CloudCharge. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| CloudCharge | cloudcharge.se | All versions |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L