GHSA-8554-jxcw-454qHighCVSS 8.1

Webargs mishandles concurrent JSON parsing

Published
March 12, 2019
Last Modified
August 4, 2025

🔗 CVE IDs covered (1)

📋 Description

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.

🎯 Affected products1

  • pip/webargs:< 5.1.3

🔗 References (8)