Skip to content

Prototype Pollution in lodash

high severity Published Jul 15, 2020 • Updated Dec 3, 2021

Package

npm lodash (npm)

Affected versions

< 4.17.19

Patched versions

4.17.19

Description

Versions of lodash prior to 4.17.19 are vulnerable to Prototype Pollution. The function zipObjectDeep allows a malicious user to modify the prototype of Object if the property identifiers are user-supplied. Being affected by this issue requires zipping objects based on user-provided property arrays.

This vulnerability causes the addition or modification of an existing property that will exist on all objects and may lead to Denial of Service or Code Execution under specific circumstances.

References

CVE ID

CVE-2020-8203

CVSS Score

7.4 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H