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Prototype Pollution in json-pointer

Moderate severity GitHub Reviewed Published Nov 8, 2021 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

npm json-pointer (npm)

Affected versions

<= 0.6.1

Patched versions

0.6.2

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.

References

Published by the National Vulnerability Database Nov 3, 2021
Reviewed Nov 4, 2021
Published to the GitHub Advisory Database Nov 8, 2021
Last updated Jan 27, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS score

8.317%
(95th percentile)

Weaknesses

CVE ID

CVE-2021-23820

GHSA ID

GHSA-v5vg-g7rq-363w

Source code

Credits

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