Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not validate the type of object created after loading the data submitted to the config.xml REST API endpoint of a node, allowing attackers with Computer/Configure permission to replace a node with one of a different type.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "2.277.1"
},
{
"introduced": "0"
},
{
"last_affected": "2.286"
}
]
}