Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick.
{
"versions": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.10"
},
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.7"
},
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.4"
},
{
"introduced": "2.5.0"
},
{
"fixed": "2.5.1"
},
{
"introduced": "0"
},
{
"last_affected": "2.6.0-preview1"
}
]
}