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Medium 5.6Published Apr 21, 2026

CVE-2026-40602The Home Assistant Command-line interface (hass-cli) is a command-line tool for Home Assistant.

Updated under an hour ago ()

Does this affect you?

It affects home-assistant-ecosystem home_assistant_command-line_interface. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

The Home Assistant Command-line interface (hass-cli) is a command-line tool for Home Assistant. Up to 1.0.0 of home-assitant-cli an unrestricted environment was used to handle Jninja2 templates instead of a sandboxed one. The user-supplied input within Jinja2 templates was rendered locally with no restrictions. This gave users access to Python's internals and extended the scope of templating beyond the intended usage. This vulnerability is fixed in 1.0.0.

CVSS
5.6 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-94, CWE-1336
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Analyzed
Record last updated
Jun 17, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
home-assistant-ecosystem home_assistant_command-line_interface
home-assistant-ecosystem:home_assistant_command-line_interface
before 1.0.0
NVD

References

  • issue-tracking
  • mitigation, vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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