GHSA-8554-jxcw-454q
Webargs mishandles concurrent JSON parsing
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2019-9710
- https://github.com/marshmallow-code/webargs/issues/371
- https://github.com/marshmallow-code/webargs/pull/373
- https://github.com/marshmallow-code/webargs/commit/716bd8d1f24c84aaf99170efaa17d1d34206f6c0
- https://github.com/marshmallow-code/webargs
- https://github.com/pypa/advisory-database/tree/main/vulns/webargs/PYSEC-2019-139.yaml
- https://webargs.readthedocs.io/en/latest/changelog.html
- https://webargs.readthedocs.io/en/latest/changelog.html#id24