A missing permission check in Jenkins Mailer Plugin 391.ve4a38c1bcf4b_ and earlier allows attackers with Overall/Read access to use the DNS used by the Jenkins instance to resolve an attacker-specified hostname.
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "1.34.2"
},
{
"introduced": "0"
},
{
"last_affected": "391.ve4a_38c1b_cf4b_-NA"
}
]
}