json-schema is vulnerable to Prototype Pollution · CVE-2021-3918 · GitHub Advisory Database · GitHub

json-schema is vulnerable to Prototype Pollution

Critical severity GitHub Reviewed Published Nov 19, 2021 to the GitHub Advisory Database • Updated Nov 29, 2023

Package

json-schema (npm)

Affected versions

< 0.4.0

Patched versions

0.4.0

Description

json-schema before version 0.4.0 is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').

References

Published by the National Vulnerability Database

Nov 13, 2021

Reviewed Nov 15, 2021

Published to the GitHub Advisory Database Nov 19, 2021

Last updated Nov 29, 2023

Severity

Critical

9.8

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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