Description
method-override is a module used by the Express.js framework to let you use HTTP verbs such as PUT or DELETE in places where the client doesn't support it. method-override is vulnerable to a regular expression denial of service vulnerability when specially crafted input is passed in to be parsed via the X-HTTP-Method-Override header.
Remediation
References
https://nodesecurity.io/advisories/538
Related Vulnerabilities
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CVE-2018-7560 Vulnerability in npm package aws-lambda-multipart-parser
CVE-2016-10559 Vulnerability in npm package selenium-download