CVE WatchJul 2, 2026

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 G

CVSS

7.8

High

EPSS

0.1%

KEV

—

Exploit Today

0-100

Published: Jun 24, 2026 · Last modified: Jul 2, 2026 · CWE-20 · CWE-78

EPSS · 30d

0.1%EPSS · 30 days0.3%

2026-06-302026-07-16

Technical 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.

Official references

github.comhttps://github.com/google-github-actions/run-gemini-cli/security/advisories/GHSA-wpqr-6v78-jr5g

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