The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "1.15.11"
},
{
"introduced": "1.16.0"
},
{
"fixed": "1.16.9"
},
{
"introduced": "1.17.0"
},
{
"fixed": "1.17.5"
},
{
"introduced": "0"
},
{
"last_affected": "1.18.0-NA"
}
]
}