WebSocket API Vulnerability in ChargeMap Enables Unauthorized Access Risks
CVE-2026-20792

8.7HIGH

Key Information:

Vendor

Chargemap

Status
Chargemap.com
Vendor
CVE Published:
26 February 2026

What is CVE-2026-20792?

The ChargeMap WebSocket Application Programming Interface exhibits a lack of restrictions on the volume of authentication requests. This flaw allows attackers to exploit the system, potentially executing denial-of-service (DoS) attacks by disrupting or rerouting legitimate charger telemetry. Furthermore, the absence of proper rate limiting enables brute-force attempts aimed at unauthorized access, raising significant security concerns for users dependent on the platform.

Affected Version(s)

chargemap.com All versions

References

https://chargemap.com/en-us/support
https://www.cisa.gov/news-events/ics-advisories/icsa-26-0...
https://github.com/cisagov/CSAF/blob/develop/csaf_files/O...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Khaled Sarieddine and Mohammad Ali Sayed reported this vulnerability to CISA
.