In Pallets Jinja before 2.8.1, str.format allows a sandbox escape.
{
"extracted_events": [
{
"cpe": "cpe:2.3:a:palletsprojects:jinja:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.8.1"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "9b53045c34e61013dc8f09b7e52a555fa16bed16"
}
],
"source": "REFERENCES_COMMIT"
}
]
}