description: negotiator is an HTTP content negotiator for Node.js and is used by many modules and frameworks including Express and Koa. The header for "Accept-Language", when parsed by negotiator 0.6.0 and earlier is vulnerable to Regular Expression Denial of Service via a specially crafted string.
problem types: Denial of Service (CWE-400)
affected:
{
product: negotiator node module
vendor: HackerOne
versions:
status: affected, version: <= 0.6.0
}