CVE-2019-9710

HighCVSS 8.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 8.1/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-362

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/marshmallow-code/webargs/issues/371Exploit, Issue Tracking, Third Party Advisory
https://webargs.readthedocs.io/en/latest/changelog.htmlRelease Notes, Third Party Advisory
https://github.com/marshmallow-code/webargs/issues/371Exploit, Issue Tracking, Third Party Advisory
https://webargs.readthedocs.io/en/latest/changelog.htmlRelease Notes, Third Party Advisory

Timeline

Published: Mar 12, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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