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CVE-2019-20477

PyYAML 5.1 through 5.1.2 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. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.

Patch Available

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Vulnerability Details
Score
Score Vector
Affected Versions
pyyaml >= 5.1 < 5.2b1
Severity
Ecosystem
Python
Publish Date
February 18, 2020
Modified Date
November 7, 2023