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 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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/google-github-actions/run-gemini-cli/security/advisories/GHSA-wpqr-6v78-jr5g	Vendor Advisory Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:google:gemini-cli::::::node.js::*
	cpe:2.3:a:google:gemini-cli:0.40.0:preview2::::node.js::*
	cpe:2.3:a:google:run-gemini-cli::::::::

History

02 Jul 2026, 19:46

Type	Values Removed	Values Added
CPE		cpe:2.3:a:google:gemini-cli::::::node.js::* cpe:2.3:a:google:gemini-cli:0.40.0:preview2::::node.js::* cpe:2.3:a:google:run-gemini-cli::::::::
CWE		CWE-78
First Time		Google gemini-cli Google Google run-gemini-cli
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
References	~~() 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 - Vendor Advisory, Patch

24 Jun 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-24 14:17

Updated : 2026-07-02 19:46

NVD link : CVE-2026-12537

Mitre link : CVE-2026-12537

CVE.ORG link : CVE-2026-12537

JSON object : View

Products Affected

google

run-gemini-cli
gemini-cli

CWE

CWE-20

Improper Input Validation

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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