urllib in Python 2.x through 2.7.16 supports the local_file: scheme, which makes it easier for remote attackers to bypass protection mechanisms that blacklist file: URIs, as demonstrated by triggering a urllib.urlopen('local_file:///etc/passwd') call. CREATE(Triage): {Link=https://nvd.nist.gov/vuln/detail/CVE-2019-9948 User=admin}