Overview
Webargs mishandles concurrent JSON parsing
Advisory
webargs 5.1.3 fixes race condition between parallel requests when the cache is used. See: CVE-2019-9710.
How to Fix
Upgradewebargsto5.1.3or higher.
Mitigation and Workarounds
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Vulnerable Functions
Functions linked to known vulnerabilities.
References
- https://getsafety.com/vulnerabilities/SFTY-20190312-27977/CVE-2019-9710
- https://nvd.nist.gov/vuln/detail/CVE-2019-9710
- https://github.com/marshmallow-code/webargs/issues/371
- https://github.com/pypa/advisory-database/tree/main/vulns/webargs/PYSEC-2019-139.yaml
- https://webargs.readthedocs.io/en/latest/changelog.html
- https://github.com/marshmallow-code/webargs/pull/373
- https://github.com/marshmallow-code/webargs/commit/716bd8d1f24c84aaf99170efaa17d1d34206f6c0
- https://webargs.readthedocs.io/en/latest/changelog.html#id24
- https://github.com/advisories/GHSA-8554-jxcw-454q
Verified by Safety
Our Cybersecurity Intelligence Team reviewed this vulnerability. We combine public data with our own research to find issues not yet reported to public sources.
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