GHSA-fm93-fhh2-cg2c: Duplicate Advisory Prototype Pollution Vulnerability

HIGH
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CVSS 7.5
CWE-1321
Published
Advisory Summary

GHSA-fm93-fhh2-cg2c is a HIGH (CVSS 7.5) prototype pollution vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves prototype pollution in min-dash. Remediation is available by upgrading affected packages to version 3.8.1.

GHSA-fm93-fhh2-cg2c at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-fm93-fhh2-cg2c
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Duplicate Advisory
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 GHSA-fm93-fhh2-cg2c

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

min-dash fixed: 3.8.1 
npm install min-dash@3.8.1
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 min-dash

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-fm93-fhh2-cg2c, inspect your project dependencies using npm:

npm ls min-dash

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.8.1), your application is affected.

Note: The npm ls min-dash 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-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), where 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. In Duplicate Advisory, 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

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-2m53-83f3-562j. This link is maintained to preserve external references. ## Original Description The package min-dash before 3.8.1 are vulnerable to Prototype Pollution via the set method due to missing enforcement of key types.

GHSA-fm93-fhh2-cg2c Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
3.8.1
Product / Package Ecosystem Affected Versions Fixed Version
min-dash
npm/min-dash
npm
< 3.8.1
3.8.1

References

NVD — GHSA-fm93-fhh2-cg2c NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23460
Duplicate Advisory Source Repository REPOSITORY
https://github.com/bpmn-io/min-dash/pull/21
Duplicate Advisory Source Repository REPOSITORY
https://github.com/bpmn-io/min-dash/pull/21/commits/5ab05cbc4fd8d5eafb7db540c491ed0906b9d320
Duplicate Advisory Source Repository REPOSITORY
https://github.com/bpmn-io/min-dash
Duplicate Advisory Source Repository REPOSITORY
https://github.com/bpmn-io/min-dash/blob/c4d579c0eb2ed0739592111c3906b198921d3f52/lib/object.js%23L32
snyk.io/vuln/snyk-java-orgw... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2342127
snyk.io/vuln/snyk-js-mindas... WEB
https://snyk.io/vuln/SNYK-JS-MINDASH-2340605

Frequently Asked Questions

What is GHSA-fm93-fhh2-cg2c?
GHSA-fm93-fhh2-cg2c is a security vulnerability in Duplicate Advisory involving Prototype Pollution in min-dash under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 3.8.1 across affected packages: min-dash.
What version fixes GHSA-fm93-fhh2-cg2c?
Upgrading to 3.8.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is min-dash affected?
Yes, min-dash is affected in releases prior to 3.8.1. Upgrade your dependency to 3.8.1 or later.
What is the CVSS score of GHSA-fm93-fhh2-cg2c?
GHSA-fm93-fhh2-cg2c 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 GHSA-fm93-fhh2-cg2c?
GHSA-fm93-fhh2-cg2c is classified under CWE-1321: 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.).
How can I check npm dependencies for GHSA-fm93-fhh2-cg2c?
Run the dependency tree command: 'npm ls min-dash'. 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-fm93-fhh2-cg2c",
  "modified" : "2025-07-18T19:44:32Z",
  "published" : "2022-01-27T14:21:53Z",
  "withdrawn" : "2025-07-18T19:44:32Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Prototype Pollution in min-dash",
  "details" : "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-2m53-83f3-562j. This link is maintained to preserve external references.\n\n## Original Description\nThe package min-dash before 3.8.1 are vulnerable to Prototype Pollution via the set method due to missing enforcement of key types.",
  "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" : "min-dash"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.8.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-23460"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bpmn-io/min-dash/pull/21"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bpmn-io/min-dash/pull/21/commits/5ab05cbc4fd8d5eafb7db540c491ed0906b9d320"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/bpmn-io/min-dash"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bpmn-io/min-dash/blob/c4d579c0eb2ed0739592111c3906b198921d3f52/lib/object.js%23L32"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2342127"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-MINDASH-2340605"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-01-24T22:51:52Z",
    "nvd_published_at" : "2022-01-21T20:15:00Z"
  }
}