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cve/2019/CVE-2019-20477.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
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CVE-2019-20477

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.

POC

Reference

Github