Feed/CVE-2019-20477
CVE-2019-20477CRITICALCVSS 9.8

CVE-2019-20477

Published Feb 18, 2020·Updated Jun 16, 2026

NVD Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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