Summary
Successful exploitation of this vulnerability could allow an authenticated attacker to escalate their privileges and control devices outside of their authorized scope.
The following versions of Hubitat Elevation Hubs are affected:
- Elevation C3 (CVE-2026-1201)
- Elevation C4 (CVE-2026-1201)
- Elevation C5 (CVE-2026-1201)
- Elevation C7 (CVE-2026-1201)
- Elevation C8 (CVE-2026-1201)
- Elevation C8 pro (CVE-2026-1201)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 9.1 | Hubitat | Hubitat Elevation Hubs | Authorization Bypass Through User-Controlled Key |
Background
- Critical Infrastructure Sectors: Energy, Communications
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: United States
Vulnerabilities
CVE-2026-1201
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
Hubitat Elevation Hubs
Hubitat
Hubitat Elevation C3: <firmware_2.4.2.157, Hubitat Elevation C4: <firmware_2.4.2.157, Hubitat Elevation C5: <firmware_2.4.2.157, Hubitat Elevation C7: <firmware_2.4.2.157, Hubitat Elevation C8: <firmware_2.4.2.157, Hubitat Elevation C8 pro: <firmware_2.4.2.157
known_affected
Remediations
Mitigation
Hubitat has released the following for users to implement:
Mitigation
Firmware version 2.4.2.157
Relevant CWE: CWE-639 Authorization Bypass Through User-Controlled Key
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 9.1 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
Acknowledgments
- Aaron ‘theHastyOne’ Hasty of Ostrich Lab reported this vulnerability to CISA
Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages.
Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.
Revision History
- Initial Release Date: 2026-01-22
| Date | Revision | Summary |
|---|---|---|
| 2026-01-22 | 1 | Initial Publication |
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