Sinatra before 2.2.0 does not validate that the expanded path matches public_dir when serving static files.
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "2.0.8.1-1ubuntu0.1~esm2",
"binary_name": "ruby-rack-protection"
},
{
"binary_version": "2.0.8.1-1ubuntu0.1~esm2",
"binary_name": "ruby-sinatra"
},
{
"binary_version": "2.0.8.1-1ubuntu0.1~esm2",
"binary_name": "ruby-sinatra-contrib"
}
]
}
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "2.0.8.1-2+deb11u1build0.22.04.1",
"binary_name": "ruby-rack-protection"
},
{
"binary_version": "2.0.8.1-2+deb11u1build0.22.04.1",
"binary_name": "ruby-sinatra"
},
{
"binary_version": "2.0.8.1-2+deb11u1build0.22.04.1",
"binary_name": "ruby-sinatra-contrib"
}
]
}