Version Details and Security Vulnerabilities

This affects all versions of the package dicer. A malicious attacker can send a modified form to the server and crash the Node.js service. A complete denial of service can be achieved by sending the malicious form in a loop.

When nanoid is called with a fractional value, there were a number of undesirable effects:

1. in browser and non-secure, the code infinite loops on while (size--)
2. in node, the value of poolOffset becomes fractional, causing calls to nanoid to return zeroes until the pool is next filled
3. if the first call in node is a fractional argument, the initial buffer allocation fails with an error

Version 3.3.8 and 5.0.9 are fixed.

The package nanoid from 3.0.0, before 3.1.31, are vulnerable to Information Exposure via the valueOf() function which allows to reproduce the last id generated.