CVE-2021-23417

critical

Description

All versions of package deepmergefn are vulnerable to Prototype Pollution via deepMerge function.

References

https://snyk.io/vuln/SNYK-JS-DEEPMERGEFN-1310984

https://github.com/jesusgm/deepmergefn/blob/master/index.js%23L6

Details

Source: Mitre, NVD

Published: 2021-07-28

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.0053