Prototype Pollution in smart-extend
Summary
GHSA-f8h3-rqrm-47v9: Prototype Pollution in smart-extend. Affected versions are not published. No fix is published. How to fix ↓
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Background
The smart-extend package is an npm module that provides a function called deep() which allows for deep merging of objects. It is commonly used in JavaScript applications to merge and extend objects. However, all versions of smart-extend are vulnerable to Prototype Pollution. This vulnerability allows attackers to modify the prototype of the Object, leading to the addition or modification of existing properties that will exist on all objects.
Vulnerability Detail
The Prototype Pollution vulnerability in smart-extend arises from the deep() function. By manipulating the input to this function, an attacker can modify the prototype of the Object, enabling them to add or modify properties that will affect all objects in the application. This can lead to various security issues such as remote code execution, privilege escalation, or data tampering. The severity of this vulnerability is considered moderate.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As there is no fix available, a possible workaround is to carefully validate and sanitize any user input or data that is passed to the deep() function. By ensuring that only trusted and properly validated data is used, the risk of exploitation can be reduced. Here is an example of how to sanitize the input:
const safeData = validateAndSanitize(userInput);
deep(safeData);
Conclusion
The smart-extend package is vulnerable to Prototype Pollution, which can have serious security implications. Until a fix is available, it is recommended to use an alternative module and ensure proper validation and sanitization of user input. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
smart-extend is an npm module that provides a function called deep() for merging and extending objects in JavaScript applications.
Prototype Pollution is a vulnerability that allows attackers to modify the prototype of an object, leading to the addition or modification of properties that will exist on all objects.
The risks of this vulnerability include remote code execution, privilege escalation, and data tampering.
No, there is currently no fix available for this vulnerability in smart-extend.
One possible workaround is to carefully validate and sanitize user input or data before passing it to the deep() function.
