CVE-2026-20744

Hydro-Québec Le Circuit Electrique charging station backend Improper Access Control

State: Published
Severity: 9.3 Critical
Published: Jul 10, 2026
Updated: Jul 14, 2026
Reserved: Jan 27, 2026

Description

The charging station websocket endpoint accepts connections without proper authentication, which could lead to privilege escalation.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	icscert
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	icscert

Weaknesses

CWE-284

Affected Products

Product	Versions
Le Circuit Electrique charging station backendHydro-Québec	before June_2026Affected

References

https://www.hydroquebec.com/nous-joindre/
https://www.cisa.gov/news-events/ics-advisories/icsa-26-188-01
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-188-01.json

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