High severity · published Mar 12, 2019
CVE-2019-9710
An issue was discovered in webargs before 5.1.3, as used with marshmallow and other products
8.1
CVSS
1.1%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
Webargs · Webargs Project
before 5.1.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-9710
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-9710
Exploit
https://github.com/marshmallow-code/webargs/issues/371
Release Notes
https://webargs.readthedocs.io/en/latest/changelog.html
More from Webargs
8.8
CVE-2020-7965
flaskparser.py in Webargs 5.x through 5.5.2 doesn't check that the Content-Type header is application/json when receiving JSON input