CVE-2026-12537

published 2026-06-24

CVE-2026-12537: Improper Neutralization used in an OS Command in the container launcher in Google Gemini CLI (versions prior to 0.39.1) and run-gemini-cli GitHub Action…

Priority P2 63 critical 10 CVSS 4.0

AV N AC L AT N PR N 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 Clear

Improper Neutralization used in an OS Command in the container launcher in Google Gemini CLI (versions prior to 0.39.1) and run-gemini-cli GitHub Action (versions prior to 0.1.22) on headless CI platforms allows an unprivileged attacker to achieve pre-sandbox host-level code execution a maliciously crafted .gemini/.env file.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
google_cloud	gemini_cli	< 0.39.1	0.39.1
google_cloud	run-gemini-cli_github_action	< 0.1.22	0.1.22

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CWE-20