The randompasswordgenerator (aka RandomPasswordGenerator) gem through 1.0.0 for Ruby uses Kernel#rand to generate passwords, which, due to its cyclic nature, can facilitate password prediction.
{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "1.0.0"
}
],
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:random_password_generator_project:random_password_generator:*:*:*:*:*:ruby:*:*"
}