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Google Gemini CLI Flaw Enables Command Execution on Hosts systems

ID: bc896d44-6d57-5b50-8bbb-dbfb6aec2440

STIX ID: report--bc896d44-6d57-5b50-8bbb-dbfb6aec2440

Feed Name: Cyber Press

Threat Score
85/100

Date Published: 2026-04-30

Date Updated: 2026-04-30

Author: Lucas Martin

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**Executive summary:** A critical remote code execution vulnerability (CVSS 10.0) in @google/gemini-cli and google-github-actions/run-gemini-cli allowed unauthenticated attackers to execute arbitrary commands on CI/CD runners by causing Gemini CLI to implicitly trust and load attacker-controlled configuration files in headless environments; Google released fixes (gemini-cli 0.39.1 and 0.40.0-preview.3, run-gemini-cli 0.1.22) and users should upgrade immediately and audit workflows for anomalous configuration loads or command execution.

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