Arbitrary Command Injection Affecting deno_subprocess_windows package, versions <0.15.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Arbitrary Command Injection vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-RUST-DENOSUBPROCESSWINDOWS-15010788
- published16 Jan 2026
- disclosed15 Jan 2026
- creditSharokhAtaie
Introduced: 15 Jan 2026
NewCVE-2026-22864 (opens in a new tab)How to fix?
Upgrade deno_subprocess_windows to version 0.15.0 or higher.
Overview
deno_subprocess_windows is a Subprocess API implementation for Windows.
Affected versions of this package are vulnerable to Arbitrary Command Injection when executing batch files on Windows. An attacker can execute arbitrary commands by supplying specially crafted input that is processed by the Windows CreateProcess function, e.g., through node:child_process or Deno.Command.spawn().
Note:
This is caused by an incomplete fix for CVE-2025-61787.
PoC
const command = new Deno.Command('./test.BAT', {
args: ['&calc.exe'],
});
const child = command.spawn();