CVE-2021-23700

Prototype Pollution

View on CVE.org

Published Dec 10, 2021 CVSS 3.1 · 6.5 Medium EPSS 1.2% KEV · Not listed

Description

All versions of package merge-deep2 are vulnerable to Prototype Pollution via the mergeDeep() function.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

merge-deep2

affected

Version	Status	Constraints
`0`	affected	< unspecified

Configuration 1 [-]

cpe:2.3:a:merge-deep2_project:merge-deep2:*:*:*:*:*:node.js:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-2536	All versions of package merge-deep2 are vulnerable to Prototype Pollution via the mergeDeep() function.
Github GHSA	GHSA-j28q-p8ww-cp87	Prototype Pollution in merge-deep2.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 1.2% (1.210% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://snyk.io/vuln/SNYK-JS-MERGEDEEP2-1727593

History

No history.

Subscriptions

Merge-deep2 Project Merge-deep2

Weaknesses

CWE-1321

Sources

CVE record Updated: Sep 16, 2024, 9:09 PM

Status: PUBLISHED
Assigner: snyk
Published: Dec 10, 2021, 8:05 PM
Updated: Sep 16, 2024, 9:09 PM
Reserved: Jan 8, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:38 AM

Status: Modified
Published: Dec 10, 2021, 8:15 PM
Modified: Jun 17, 2026, 3:38 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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