CVE-2026-20781 - Vulnerability Analysis

Overview

OCPP WebSocket endpoints contain a broken access control vulnerability caused by lack of authentication, letting unauthenticated attackers impersonate stations and manipulate backend data, exploit requires no authentication.

Severity & Score

Impact

Unauthenticated attackers can control charging stations, escalate privileges, and corrupt backend charging network data.

Mitigation

Implement proper authentication mechanisms on WebSocket endpoints or update to a version that enforces authentication.

References

• https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-03
• https://cloudcharge.tech/support/contact/
• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-03.json

Related Resources

• Vulnerability Intelligence Dashboard
• Credential Scanner