# CVE-2026-12537: Unauthenticated Remote Code Execution in Gemini CLI CI/CD Workflows

> CVE-2026-12537: Unauthenticated Remote Code Execution in Gemini CLI CI/CD Workflows. CVSS 7.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-12537
Last updated: 2026-07-02T19:46:27Z

- Published: 2026-06-24 13:37 UTC · Updated: 2026-07-02 19:46 UTC · Assigner: GoogleCloud
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 0.21%, 11th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-20

## 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.

## Affected vendors and products

- Google Cloud: Gemini CLI
- Google Cloud: run-gemini-cli GitHub Action

## Tracked companies

- [Google Cloud](https://rewindex.com/company/google-cloud.md)
- [Google Gemini API](https://rewindex.com/company/google-gemini-api.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-12537)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-12537)
- [https://github.com/google-github-actions/run-gemini-cli/security/advisories/GHSA-wpqr-6v78-jr5g](https://github.com/google-github-actions/run-gemini-cli/security/advisories/GHSA-wpqr-6v78-jr5g)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-12537 · Markdown: https://rewindex.com/cve/CVE-2026-12537.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-12537 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:17:02.799Z