denoland Deno up to 2.2.14/2.5.2 on Windows Command Line cmd.exe CreateProcess command injection

Summaryinfo

A vulnerability was found in denoland Deno up to 2.2.14/2.5.2 on Windows. It has been classified as critical. This affects the function CreateProcess of the file cmd.exe of the component Command Line Handler. This manipulation causes command injection. This vulnerability is tracked as CVE-2025-61787. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in denoland Deno up to 2.2.14/2.5.2 on Windows and classified as critical. Affected by this vulnerability is the function CreateProcess of the file cmd.exe of the component Command Line Handler. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Versions prior to 2.5.3 and 2.2.15 are vulnerable to Command Line Injection attacks on Windows when batch files are executed. In Windows, ``CreateProcess()`` always implicitly spawns ``cmd.exe`` if a batch file (.bat, .cmd, etc.) is being executed even if the application does not specify it via the command line. This makes Deno vulnerable to a command injection attack on Windows. Versions 2.5.3 and 2.2.15 fix the issue.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-61787 since 09/30/2025. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading to version 2.2.15 or 2.5.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 8a0990ccd37bafd8768176ca64b906ba2da2d822 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• denoland

Name

• Deno

Version

• 2.2.0
• 2.2.1
• 2.2.2
• 2.2.3
• 2.2.4
• 2.2.5
• 2.2.6
• 2.2.7
• 2.2.8
• 2.2.9
• 2.2.10
• 2.2.11
• 2.2.12
• 2.2.13
• 2.2.14
• 2.5.0
• 2.5.1
• 2.5.2

License

• open-source

Website

• Product: https://github.com/denoland/deno/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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