langyizhao opened a new pull request #76:
URL: https://github.com/apache/skywalking-python/pull/76


   This is to mitigate security issue `Use of unsafe yaml load` found in 
https://console.muse.dev/result/ayorra/skywalking-python/01EK1BP85DHDEV2RJTTEYFNV9G?tab=results
   
   According to https://pyyaml.org/wiki/PyYAMLDocumentation
   Ideally we should always use safe_load in place of load when the source of 
yaml can be untrusted (which IS the case because it's from the web)
   
   But I understand that we also want to use CLoader for the sake of 
performance.
   This is a mitigation following 
https://github.com/yaml/pyyaml/blob/2f463cf5b0e98a52bc20e348d1e69761bf263b86/tests/lib/test_yaml_ext.py#L37


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