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PYSEC-2019-139
Quick fix
PYSEC-2019-139 — webargs: upgrade to the fixed version with the command below.
pip install --upgrade 'webargs>=5.1.3'Details
An issue was discovered in webargs before 5.1.3, as used with marshmallow and other products. JSON parsing uses a short-lived cache to store the parsed JSON body. This cache is not thread-safe, meaning that incorrect JSON payloads could have been parsed for concurrent requests.
Are you affected?
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