Improper Access Control Affecting pyyaml package, versions [5.1, 5.2)


0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Mature
    EPSS 17.49% (97th percentile)
Expand this section
NVD
9.8 critical
Expand this section
Red Hat
9.8 critical

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-PYTHON-PYYAML-550022
  • published 19 Feb 2020
  • disclosed 19 Feb 2020
  • credit Manmeet Singh, Ashish Kukreti

How 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.