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Fencer Vulns
critical 9.4

CVE-2026-1201 json

Authorization Bypass Through User-Controlled Key in Hubitat Elevation Hubs

published 2026-01-22 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-4204

cvss
9.4
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

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.

Patch / fix

  • Hubitat Elevation C3 2.4.2.157
  • Hubitat Elevation C4 2.4.2.157
  • Hubitat Elevation C5 2.4.2.157
  • Hubitat Elevation C7 2.4.2.157
  • Hubitat Elevation C8 2.4.2.157
  • Hubitat Elevation C8 pro 2.4.2.157

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-022-06 updated cvss 9.1

Hubitat Elevation Hubs

  • 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
    affected: mitigation “Hubitat has released the following for users to implement:” community.hubitat.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
9 mo ago

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 9.4 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
CNA 4.0 9.4 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/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

Affected products

  • Hubitat Elevation C3
  • Hubitat Elevation C4
  • Hubitat Elevation C5
  • Hubitat Elevation C7
  • Hubitat Elevation C8
  • Hubitat Elevation C8 pro

Classification

Weakness
  • CWE-639 Authorization Bypass Through User-Controlled Key

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.