CVE-2026-40602

Description

A flaw was found in the Home Assistant Command-line interface (hass-cli). This command-line tool for Home Assistant used an unrestricted environment to handle Jinja2 templates, rather than a sandboxed one. A local user with high privileges could exploit this by providing malicious input within Jinja2 templates, gaining access to Python's internal functions. This could lead to arbitrary code execution and significant information disclosure.

Statement

Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Understanding the Weakness (CWE)

Confidentiality

Technical Impact: Read Application Data

Integrity

Technical Impact: Execute Unauthorized Code or Commands

Frequently Asked Questions

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