GHSA-9wx3-p993-35vp: Duplicate Advisory Axios: Nested Axios Option Objects Vulnerability

MODERATE
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CVSS 3.7
CWE-1321
Published
Advisory Summary

GHSA-9wx3-p993-35vp is a MODERATE (CVSS 3.7) axios: nested axios option objects vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves axios: nested axios option objects can consume polluted prototype values. Remediation is available in the latest vendor maintenance releases.

GHSA-9wx3-p993-35vp at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-9wx3-p993-35vp
Severity MODERATE
CVSS v3.1 Base Score 3.7
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: 3.7

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

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

How to Fix GHSA-9wx3-p993-35vp

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.

axios fixed: Latest secure release 
npm install axios@Latest secure release
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 axios

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-9wx3-p993-35vp, inspect your project dependencies using npm:

npm ls axios

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 the patched release), your application is affected.

Note: The npm ls axios 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-7q8q-rj6j-mhjq. This link is maintained to preserve external references. ## Original Description axios before 0.33.0 (and 1.x before 1.18.0) can consume inherited properties from nested request option objects when the JavaScript process's Object.prototype has already been polluted by another component. While the top-level merged config uses a null prototype, nested plain objects such as auth and paramsSerializer are cloned into ordinary objects and read without own-property checks. When an application passes placeholder nested objects such as auth: {} or paramsSerializer: {}, inherited username/password values can cause silent injection of an Authorization: Basic header, and inherited encode/serialize values can alter query-string serialization (full serializer replacement requires a function-valued pollution primitive). This is exploitable only in the presence of pre-existing prototype pollution.

GHSA-9wx3-p993-35vp Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
axios
npm/axios
npm
≥ 1.0.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/axios/axios/security/advisories/GHSA-7q8q-rj6j-mhjq
NVD — GHSA-9wx3-p993-35vp NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-67319
www.vulncheck.com/advisories/axios-be... WEB
https://www.vulncheck.com/advisories/axios-before-prototype-pollution-via-nested-option-objects

Frequently Asked Questions

What is GHSA-9wx3-p993-35vp?
GHSA-9wx3-p993-35vp is a security vulnerability in Duplicate Advisory involving Axios: Nested axios option objects can consume polluted prototype values under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: axios.
What version fixes GHSA-9wx3-p993-35vp?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is axios affected?
Yes, axios is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-9wx3-p993-35vp?
GHSA-9wx3-p993-35vp has a CVSS v3.1 base score of 3.7 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with GHSA-9wx3-p993-35vp?
GHSA-9wx3-p993-35vp 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-9wx3-p993-35vp?
Run the dependency tree command: 'npm ls axios'. 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-9wx3-p993-35vp",
  "modified" : "2026-09-01T18:41:21Z",
  "published" : "2026-08-01T15:30:28Z",
  "withdrawn" : "2026-09-01T18:41:21Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Axios: Nested axios option objects can consume polluted prototype values",
  "details" : "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-7q8q-rj6j-mhjq. This link is maintained to preserve external references.\n\n## Original Description\naxios before 0.33.0 (and 1.x before 1.18.0) can consume inherited properties from nested request option objects when the JavaScript process's Object.prototype has already been polluted by another component. While the top-level merged config uses a null prototype, nested plain objects such as auth and paramsSerializer are cloned into ordinary objects and read without own-property checks. When an application passes placeholder nested objects such as auth: {} or paramsSerializer: {}, inherited username/password values can cause silent injection of an Authorization: Basic header, and inherited encode/serialize values can alter query-string serialization (full serializer replacement requires a function-valued pollution primitive). This is exploitable only in the presence of pre-existing prototype pollution.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "axios"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 1.18.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/axios/axios/security/advisories/GHSA-7q8q-rj6j-mhjq"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-67319"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/axios-before-prototype-pollution-via-nested-option-objects"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-01T18:41:21Z",
    "nvd_published_at" : "2026-08-01T13:17:02Z"
  }
}