Vulnerabilities in pkg:npm/nested-object-assign

PACKAGE
Advisory Identifier: GHSA-c497-v8pv-ch6x
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Advisory Summary

CVE-2021-23329 is a HIGH (CVSS 7.5) prototype pollution vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Nested object assign libraries in the npm ecosystem. The issue involves prototype pollution in nested-object-assign. Remediation is available by upgrading affected packages to version 1.0.4.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/nested-object-assign

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/nested-object-assign. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-c497-v8pv-ch6x CVE-2021-23329 HIGH Prototype pollution in nested-object-assign

CVE-2021-23329 at a Glance

CVE Identifier CVE-2021-23329
GHSA Identifier GHSA-c497-v8pv-ch6x
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Nested object assign
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2021-23329

To remediate this vulnerability, upgrade all affected Nested object assign dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

nested-object-assign fixed: 1.0.4 
npm install nested-object-assign@1.0.4
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls nested-object-assign

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-23329, inspect your project dependencies using npm:

npm ls nested-object-assign

Analyze the terminal output to locate any version of Nested object assign in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.4), your application is affected.

Note: The npm ls nested-object-assign command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Nested object assign, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

The package nested-object-assign before 1.0.4 is vulnerable to Prototype Pollution via the default function.

CVE-2021-23329 Affected Nested object assign Versions

1 component(s)
Fixed Versions:
1.0.4
Product / Package Ecosystem Affected Versions Fixed Version
nested-object-assign
npm/nested-object-assign
npm
< 1.0.4
1.0.4

References

NVD — CVE-2021-23329 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23329
Nested object assign Source Repository REPOSITORY
https://github.com/Geta/NestedObjectAssign/pull/11
snyk.io/vuln/snyk-js-nested... WEB
https://snyk.io/vuln/SNYK-JS-NESTEDOBJECTASSIGN-1065977
www.npmjs.com/package/nested-obje... WEB
https://www.npmjs.com/package/nested-object-assign

Frequently Asked Questions

What is CVE-2021-23329?
CVE-2021-23329 is a security vulnerability in Nested object assign involving Prototype pollution in nested-object-assign under CWE-400: Uncontrolled Resource Consumption.
Which Nested object assign versions are affected?
Affected versions include releases prior to 1.0.4 across affected packages: nested-object-assign.
What version fixes CVE-2021-23329?
Upgrading to 1.0.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nested-object-assign affected?
Yes, nested-object-assign is affected in releases prior to 1.0.4. Upgrade your dependency to 1.0.4 or later.
What is the CVSS score of CVE-2021-23329?
CVE-2021-23329 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2021-23329?
CVE-2021-23329 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check npm dependencies for CVE-2021-23329?
Run the dependency tree command: 'npm ls nested-object-assign'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-c497-v8pv-ch6x",
  "modified" : "2023-08-08T19:28:27Z",
  "published" : "2021-02-01T15:01:14Z",
  "aliases" : [ "CVE-2021-23329" ],
  "summary" : "Prototype pollution in nested-object-assign",
  "details" : "The package nested-object-assign before 1.0.4 is vulnerable to Prototype Pollution via the default function.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "nested-object-assign"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.0.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-23329"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Geta/NestedObjectAssign/pull/11"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-NESTEDOBJECTASSIGN-1065977"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/nested-object-assign"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-02-01T06:29:54Z",
    "nvd_published_at" : "2021-01-31T16:15:00Z"
  }
}