Skip to content

Prototype Pollution in the merge and clone helper methods

Moderate severity GitHub Reviewed Published Sep 17, 2021 in ecomfe/zrender • Updated Dec 6, 2024

Package

npm zrender (npm)

Affected versions

>= 5.0.0, < 5.2.1
<= 4.3.2

Patched versions

5.2.1
4.3.3

Description

Impact

Using merge and clone helper methods in the src/core/util.ts module will have prototype pollution. It will affect the popular data visualization library Apache ECharts, which is using and exported these two methods directly.

Patches

It has been patched in ecomfe/zrender#826.
Users should update zrender to 5.2.1. and update echarts to 5.2.1 if project is using echarts.

References

NA

For more information

NA

References

@pissang pissang published to ecomfe/zrender Sep 17, 2021
Published by the National Vulnerability Database Sep 17, 2021
Reviewed Sep 17, 2021
Published to the GitHub Advisory Database Sep 20, 2021
Last updated Dec 6, 2024

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

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

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(59th percentile)

Weaknesses

Improperly Controlled Modification of Dynamically-Determined Object Attributes

The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified. Learn more on MITRE.

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. Learn more on MITRE.

CVE ID

CVE-2021-39227

GHSA ID

GHSA-fhv8-fx5f-7fxf

Source code

Credits

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.