CVE-2026-12537

HIGH

Unauthenticated Remote Code Execution in Gemini CLI CI/CD Workflows

Title source: cna

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.

References (1)

Core 1

Core References

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

Scores

CVSS v3 7.8

EPSS 0.0013

EPSS Percentile 3.3%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-20 CWE-78

Status published

Products (5)

google/gemini-cli 0.40.0 preview2

google/gemini-cli < 0.39.1

google/run-gemini-cli < 0.1.22

Google Cloud/Gemini CLI < 0.39.1

Google Cloud/run-gemini-cli GitHub Action < 0.1.22

Published Jun 24, 2026

Tracked Since Jun 24, 2026