Vulnerability · Published Jan 22, 2026 · Assigned by icscert
CVE-2026-1201Authorization Bypass Through User-Controlled Key in Hubitat Elevation Hubs
Critical 9.4
In plain English
A critical-severity authorization bypass via user-controlled key in Elevation C3 from Hubitat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 4.0)9.4Critical
Exploit odds (30 days)0.5%top 59.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An Authorization Bypass Through User-Controlled Key vulnerability in Hubitat Elevation home automation controllers prior to version 2.4.2.157 could allow a remote authenticated user to control connected devices outside of their authorized scope via client-side request manipulation.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Hubitat | Elevation C3 | 0 – before 2.4.2.157 |
| Hubitat | Elevation C4 | 0 – before 2.4.2.157 |
| Hubitat | Elevation C5 | 0 – before 2.4.2.157 |
| Hubitat | Elevation C7 | 0 – before 2.4.2.157 |
| Hubitat | Elevation C8 | 0 – before 2.4.2.157 |
| Hubitat | Elevation C8 pro | 0 – before 2.4.2.157 |
Weakness: CWE-639 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-022-06 government-resource
- https://ostrichlab.io/research-blog/?post=hubitat_writeup technical-description, related