CVSS 3.0
8.1 highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2019-9710
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.
Severity
- EPSS
- 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
- CWE
- CWE-362
- Published
- Modified
- Record from
- the NVD, synced
Affected
- webargs_project:webargs
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8554-jxcw-454q | PyPI | webargs | <5.1.3 | 5.1.3 |
| PYSEC-2019-139 | PyPI | webargs | <5.1.3 | 5.1.3 |