CVE-2019-9710
Webargs mishandles concurrent JSON parsing
8.1
HIGH
CVSS 3.1
EPSS 0.36%
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.
How to fix CVE-2019-9710
To remediate CVE-2019-9710, upgrade the affected package to a fixed version below.
- —upgrade to 5.1.3 or later
- —upgrade to 5.1.3 or later
Is CVE-2019-9710 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 5.1.3
- from 0, < 5.1.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P |
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |