CVE-2025-61927

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. Happy DOM v19 and lower contains a security vulnerability that puts the owner system at the risk of RCE (Remote Code Execution) attacks. A Node.js VM Context is not an isolated environment, and if the user runs untrusted JavaScript code within the Happy DOM VM Context, it may escape the VM and get access to process level functionality. It seems like what the attacker can get control over depends on if the process is using ESM or CommonJS. With CommonJS the attacker can get hold of the `require()` function to import modules. Happy DOM has JavaScript evaluation enabled by default. This may not be obvious to the consumer of Happy DOM and can potentially put the user at risk if untrusted code is executed within the environment. Version 20.0.0 patches the issue by changing JavaScript evaluation to be disabled by default.

CVSS

No CVSS.

References

Link	Resource
https://github.com/capricorn86/happy-dom/commit/819d15ba289495439eda8be360d92a614ce22405
https://github.com/capricorn86/happy-dom/security/advisories/GHSA-37j7-fg3j-429f

Configurations

No configuration.

History

10 Oct 2025, 20:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-10 20:15

Updated : 2025-10-14 19:36

NVD link : CVE-2025-61927

Mitre link : CVE-2025-61927

CVE.ORG link : CVE-2025-61927

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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