Jekyll through 3.6.2, 3.7.x through 3.7.3, and 3.8.x through 3.8.3 allows attackers to access arbitrary files by specifying a symlink in the "include" key in the "_config.yml" file.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "3.6.2"
},
{
"introduced": "3.7.0"
},
{
"last_affected": "3.7.3"
},
{
"introduced": "3.8.0"
},
{
"last_affected": "3.8.3"
}
]
}