CVE-2021-23470

Prototype Pollution

High · published February 4, 2022

CVSS v3.1
8.2
EPSS
1%
Percentile
69.5
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:P
CVSS v4.0
Not supplied
EPSS
0.01266 · 69.5th percentile
Published
2022-02-04T20:05Z
EPSS history
Timeline
  • 04 FEB 20:05Z
    Prototype Pollution
    cvelistv5