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.

Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

Ensure you are using the latest version of gemini cli and follow the best practices guide https://github.com/google-github-actions/run-gemini-cli/blob/main/docs/trust-guidance.md .


Workaround

No workaround given by the vendor.

History

Wed, 24 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 24 Jun 2026 13:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Unauthenticated Remote Code Execution in Gemini CLI CI/CD Workflows
Weaknesses CWE-20
References
Metrics cvssV4_0

{'score': 10, 'vector': '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/U:Clear'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GoogleCloud

Published:

Updated: 2026-06-24T13:53:24.904Z

Reserved: 2026-06-17T15:08:00.562Z

Link: CVE-2026-12537

cve-icon Vulnrichment

Updated: 2026-06-24T13:52:36.223Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-24T15:00:06Z

Weaknesses