CVE-2021-23820

MEDIUM5.6EPSS 0.52%

Prototype Pollution in json-pointer

Published: 11/8/2021Modified: 2/4/2026

Also known as:GHSA-v5vg-g7rq-363wCGA-wfvg-8gqq-j7m9

Description

This affects versions of package `json-pointer` up to and including `0.6.1`. A type confusion vulnerability can lead to a bypass of CVE-2020-7709 when the pointer components are arrays.

Affected packages (1)

npm/json-pointerfrom 0, < 0.6.2

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References (6)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-23820
PATCHhttps://github.com/manuelstofer/json-pointer
WEBhttps://github.com/manuelstofer/json-pointer/blob/master/index.js%23L78
WEBhttps://github.com/manuelstofer/json-pointer/commit/931b0f9c7178ca09778087b4b0ac7e4f505620c2
WEBhttps://github.com/manuelstofer/json-pointer/pull/36
WEBhttps://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577287