CVE-2019-9710
An issue was discovered in webargs before 5.1.3, as used with marshmallow and other products.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.12% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- webargs project/webargs
- Source
- cve@mitre.org
EPSS 1.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.