CVE-2026-12537 Affecting gemini-cli package, versions <0.40.1-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-GEMINICLI-20145124
- published26 Sept 2026
- disclosed24 Jun 2026
Introduced: 24 Jun 2026
CVE-2026-12537 (opens in a new tab)How to fix?
Upgrade Chainguard gemini-cli to version 0.40.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gemini-cli package and not the gemini-cli package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
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.