CVE-2021-23470
Prototype Pollution in putil-merge
8.2
HIGH
CVSS 3.1
EPSS 1.5%
Description
This affects the package putil-merge before 3.8.0. The merge() function does not check the values passed into the argument. An attacker can supply a malicious value by adjusting the value to include the constructor property. Note: This vulnerability derives from an incomplete fix in https://security.snyk.io/vuln/SNYK-JS-PUTILMERGE-1317077
How to fix CVE-2021-23470
To remediate CVE-2021-23470, upgrade the affected package to a fixed version below.
- —upgrade to 3.8.0 or later
Is CVE-2021-23470 being exploited?
Low — EPSS is 1.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.8.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |