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CVE-2026-40602

5.6 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.6 · home-assistant-ecosystemNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:home-assistant-ecosystem:home_assistant_command-line_interface:*:*:*:*:*:*:*:*

References 2