In RESTEasy the insecure File.createTempFile() is used in the DataSourceProvider, FileProvider and Mime4JWorkaround classes which creates temp files with insecure permissions that could be read by a local user.
[
{
"vendor": "n/a",
"product": "RESTEasy",
"versions": [
{
"version": "Fixed in RESTEasy 4.7.8.Final",
"status": "affected"
}
]
}
]