The http parser in Phusion Passenger 6.0.21 through 6.0.25 before 6.0.26 allows a denial of service during parsing of a request with an invalid HTTP method.
{
"severity": "High",
"cpes": [
"cpe:2.3:a:phusion:passenger:*:*:*:*:*:*:*:*"
]
}