CVE-2026-31904
published 2026-03-20CVE-2026-31904: The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an…
PriorityP341high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.43%
34.2th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ctek | chargeportal | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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GHSA
GHSA-8gv5-gqxv-v6mq: The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests
ghsa_unreviewed·2026-03-21
CVE-2026-31904 [HIGH] CWE-307 GHSA-8gv5-gqxv-v6mq: The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests
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.
CISA ICS
CTEK Chargeportal
cisa_ics·2026-03-19·CVSS 9.4
[CRITICAL] CTEK Chargeportal
ICS Advisory
##
CTEK Chargeportal
Release DateMarch 19, 2026
Alert CodeICSA-26-078-06
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems
View CSAF
## Summary
Successful exploitation of these vulnerabilities could enable attackers to gain unauthorized administrative control over vulnerable charging stations or disrupt charging services through denial-of-service attacks.
The following versions of CTEK Chargeportal are affected:
- Chargeportal vers:all/*
CVSS
Vendor
Equipment
Vulnerabilities
| v3 9.4
| CTEK
| CTEK Chargeportal
| Missing Authentication for Critical Function, Improper Restriction of Excessive Authentication Attempts, Insufficient Session Expiration, Insufficiently Protected Credentials
## Background
- Criti
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-03-20
Published