A vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in XStream2.java that allows attackers to have Jenkins resolve a domain name when deserializing an instance of java.net.URL.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "2.121.2"
},
{
"introduced": "0"
},
{
"last_affected": "2.137"
}
]
}