CVE-2019-9948: python: Undocumented local_file protocol allows remote attackers to bypass protection mechanisms

Severity: Critical

CVSS Score: 9.1

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.