CVE-2026-12537
Unauthenticated Remote Code Execution in Gemini CLI CI/CD Workflows
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.
INFO
Published Date :
June 24, 2026, 1:37 p.m.
Last Modified :
June 24, 2026, 1:37 p.m.
Remotely Exploit :
Yes !
Source :
GoogleCloud
Affected Products
The following products are affected by CVE-2026-12537
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | CRITICAL | f45cbf4e-4146-4068-b7e1-655ffc2c548c | ||||
| CVSS 4.0 | CRITICAL | f45cbf4e-4146-4068-b7e1-655ffc2c548c |
Solution
- Update Google Gemini CLI to version 0.39.1 or later.
- Update run-gemini-cli GitHub Action to version 0.1.22 or later.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-12537 vulnerability anywhere in the article.