Improper Access Control Affecting pyyaml package, versions [5.1, 5.2)
Snyk CVSS
Attack Complexity
Low
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
Exploit Maturity
Mature
EPSS
17.49% (97th
percentile)
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Test your applications- Snyk ID SNYK-PYTHON-PYYAML-550022
- published 19 Feb 2020
- disclosed 19 Feb 2020
- credit Manmeet Singh, Ashish Kukreti
Introduced: 19 Feb 2020
CVE-2019-20477 Open this link in a new tabHow to fix?
Upgrade PyYAML
to version 5.2 or higher.
Overview
Affected versions of this package are vulnerable to Improper Access Control. It has insufficient restrictions on the load
and load_all
functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module.