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cve recordhigh

CVE-2026-12537

google · gemini-cli

Published
CVSS7.8
Severityhigh
WeaknessCWE-20
ExploitedNot in CISA KEV

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

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

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Our coverage of CVE-2026-12537

CVE-2026-12537critical

Claude Code and Gemini CLI Flaws Let a GitHub Issue Reach CI Workflow Secrets

Recent reports indicate that researchers have uncovered critical vulnerabilities within Anthropic's Claude Code and Google's Gemini CLI tools. These flaws reportedly enabled unprivileged attackers to achieve code execution on Continuous Integration (CI) runners. The vulnerabilities have since been patched by the respective vendors and assigned CVE identifiers, though the specific CVEs were not…