GitHub Advisoryadvisory · PyPI

GHSA-8554-jxcw-454q Webargs mishandles concurrent JSON parsing

HIGH Published 2019-03-12 Modified 2025-08-04 Official page ↗
Aliases
CVE-2019-9710
Ecosystem
PyPI
Packages
webargs
Severity
High
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-362
Reviewed
2020-06-16

Affected packages

• PyPI webargs: < 5.1.3 → fixed in 5.1.3

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.

Related

Alias · CVE (1)

  • CVE-2019-9710 An issue was discovered in webargs before 5.1.3, as used with marshmallow and other products. vulnerability

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References