CVE-2021-25947

Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code…

published June 3, 2021

CVSS
—
EPSS
3%
Percentile
87.1
In the wild
Unconfirmed
What it is

⚠️ A crafty prototype pollution vulnerability lurks in 'nestie' versions 0.0.0 through 1.0.0, and it could wreak havoc! Think of this vulnerability as a sneaky chef who swaps the ingredients in your recipe without anyone noticing. One wrong adjustment can spoil the entire dish — or in this case, crash your application or open the door for remote code execution! An attacker could exploit this flaw to cause a denial of service, leaving your application unresponsive and your users frustrated. In more severe cases, it could allow remote code execution, meaning attackers could run malicious code on your server, leading to potential data breaches or further system compromises.

Put simply

Think of this vulnerability as a sneaky chef who swaps the ingredients in your recipe without anyone noticing. One wrong adjustment can spoil the entire dish — or in this case, crash your application or open the door for remote code execution! This prototype pollution issue allows an attacker to modify the prototype of a base object, which can lead to unexpected behavior and system instability, including denial of service and remote code execution capabilities.

What to do

An attacker could exploit this flaw to cause a denial of service, leaving your application unresponsive and your users frustrated. In more severe cases, it could allow remote code execution, meaning attackers could run malicious code on your server, leading to potential data breaches or further system compromises. To safeguard your applications, update 'nestie' to version 1.0.1 or later as soon as possible. Additionally, ensure you review and sanitize any user inputs that might reach the prototype. Regular security audits can also help catch similar issues before they cause chaos. You've got this! Implement these fixes, and you'll be on your way to security hero status! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02961 · 87.1th percentile
Published
2021-06-03T19:51Z
EPSS history
Timeline
  • 03 JUN 19:51Z
    Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code…
    cvelistv5