CVE-2021-3918
json-schema is vulnerable to Prototype Pollution
9.8
CRITICAL
CVSS 3.1
EPSS 1.3%
Description
json-schema is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
How to fix CVE-2021-3918
To remediate CVE-2021-3918, upgrade the affected package to a fixed version below.
- Debian/node-json-schema—upgrade to 0.3.0+~7.0.6-1+deb11u1 or later
- Debian/node-json-schema—upgrade to 0.2.3-1+deb10u1 or later
- —upgrade to 0.4.0 or later
Is CVE-2021-3918 being exploited?
Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.3.0+~7.0.6-1+deb11u1
- from 0, < 0.2.3-1+deb10u1
- from 0, < 0.4.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |