Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into a full Man-in-the-Middle (MITM) attack — intercepting, reading, and modifying all HTTP traffic including authentication credentials. The HTTP adapter at lib/adapters/http.js:670 reads config.proxy via standard property access, which traverses the prototype chain. Because proxy is not present in Axios defaults, the merged config object has no own proxy property, making it trivially injectable via prototype pollution. Once injected, setProxy() routes all HTTP requests through the attacker's proxy server. This vulnerability is fixed in 1.16.0.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-35jp-ww65-95wh axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
Link Providers
https://access.redhat.com/errata/RHSA-2026:20889 cve-icon
https://access.redhat.com/errata/RHSA-2026:20938 cve-icon
https://access.redhat.com/errata/RHSA-2026:27044 cve-icon
https://access.redhat.com/errata/RHSA-2026:28964 cve-icon
https://access.redhat.com/errata/RHSA-2026:29082 cve-icon
https://access.redhat.com/errata/RHSA-2026:29197 cve-icon
https://access.redhat.com/errata/RHSA-2026:29800 cve-icon
https://access.redhat.com/errata/RHSA-2026:29864 cve-icon
https://access.redhat.com/errata/RHSA-2026:30650 cve-icon
https://access.redhat.com/errata/RHSA-2026:30651 cve-icon
https://access.redhat.com/errata/RHSA-2026:33005 cve-icon
https://access.redhat.com/errata/RHSA-2026:33155 cve-icon
https://access.redhat.com/errata/RHSA-2026:33160 cve-icon
https://access.redhat.com/errata/RHSA-2026:33163 cve-icon
https://access.redhat.com/errata/RHSA-2026:33173 cve-icon
https://access.redhat.com/errata/RHSA-2026:33183 cve-icon
https://access.redhat.com/errata/RHSA-2026:33574 cve-icon
https://access.redhat.com/errata/RHSA-2026:34525 cve-icon
https://access.redhat.com/errata/RHSA-2026:34527 cve-icon
https://access.redhat.com/errata/RHSA-2026:34530 cve-icon
https://access.redhat.com/errata/RHSA-2026:34794 cve-icon
https://access.redhat.com/errata/RHSA-2026:36108 cve-icon
https://access.redhat.com/errata/RHSA-2026:36611 cve-icon
https://access.redhat.com/errata/RHSA-2026:36754 cve-icon
https://access.redhat.com/errata/RHSA-2026:36820 cve-icon
https://access.redhat.com/errata/RHSA-2026:36882 cve-icon
https://access.redhat.com/errata/RHSA-2026:36883 cve-icon
https://access.redhat.com/errata/RHSA-2026:40262 cve-icon
https://access.redhat.com/errata/RHSA-2026:40792 cve-icon
https://access.redhat.com/errata/RHSA-2026:40795 cve-icon
https://access.redhat.com/errata/RHSA-2026:41031 cve-icon
https://access.redhat.com/errata/RHSA-2026:41055 cve-icon
https://access.redhat.com/errata/RHSA-2026:41064 cve-icon
https://access.redhat.com/errata/RHSA-2026:41066 cve-icon
https://access.redhat.com/errata/RHSA-2026:41928 cve-icon
https://access.redhat.com/errata/RHSA-2026:41951 cve-icon
https://access.redhat.com/errata/RHSA-2026:42078 cve-icon
https://access.redhat.com/errata/RHSA-2026:42085 cve-icon
https://access.redhat.com/errata/RHSA-2026:42142 cve-icon
https://access.redhat.com/errata/RHSA-2026:42146 cve-icon
https://access.redhat.com/errata/RHSA-2026:42796 cve-icon
https://access.redhat.com/errata/RHSA-2026:43052 cve-icon
https://access.redhat.com/errata/RHSA-2026:46885 cve-icon
https://access.redhat.com/errata/RHSA-2026:46903 cve-icon
https://access.redhat.com/errata/RHSA-2026:50300 cve-icon
https://access.redhat.com/security/cve/CVE-2026-44494 cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2487942 cve-icon
https://github.com/axios/axios/security/advisories/GHSA-35jp-ww65-95wh cve-icon cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-44494 cve-icon
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44494.json cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-44494 cve-icon
History

Sat, 13 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-915
References
Metrics threat_severity

None

threat_severity

Important


Fri, 12 Jun 2026 18:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:*

Thu, 11 Jun 2026 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Axios
Axios axios
Vendors & Products Axios
Axios axios

Thu, 11 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 11 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
Description Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into a full Man-in-the-Middle (MITM) attack — intercepting, reading, and modifying all HTTP traffic including authentication credentials. The HTTP adapter at lib/adapters/http.js:670 reads config.proxy via standard property access, which traverses the prototype chain. Because proxy is not present in Axios defaults, the merged config object has no own proxy property, making it trivially injectable via prototype pollution. Once injected, setProxy() routes all HTTP requests through the attacker's proxy server. This vulnerability is fixed in 1.16.0.
Title Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
Weaknesses CWE-1321
CWE-441
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-13T12:04:32.512Z

Reserved: 2026-05-06T17:18:51.783Z

Link: CVE-2026-44494

cve-icon Vulnrichment

Updated: 2026-08-13T12:04:32.512Z

cve-icon NVD

Status : Modified

Published: 2026-06-11T17:16:33.313

Modified: 2026-08-13T13:19:01.140

Link: CVE-2026-44494

cve-icon Redhat

Severity : Important

Publid Date: 2026-06-11T15:32:03Z

Links: CVE-2026-44494 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-13T02:30:06Z

Weaknesses