Axios: Proxy-Authorization Header Injection via Prototype Pollution — Incomplete Null-Prototype Fix_CVE-2026-44489

{
    "lastseen": "",
    "description": "Axios is a promise based HTTP client for the browser and Node.js. From 1.15.2 to before 1.16.0, nested objects created by utils.merge() (e.g., config.proxy) are still constructed as plain {} with Object.prototype in their chain. The setProxy() function at lib/adapters/http.js:209-223 reads proxy.username, proxy.password, and proxy.auth without hasOwnProperty checks. When Object.prototype.username is polluted, setProxy() constructs a Proxy-Authorization header with attacker-controlled credentials and injects it into every proxied HTTP request. This vulnerability is fixed in 1.16.0.",
    "published": "2026-06-11T15:30:44.798Z",
    "modified": "2026-06-11T15:30:44.798Z",
    "type": "cve",
    "title": "Axios: Proxy-Authorization Header Injection via Prototype Pollution \u2014 Incomplete Null-Prototype Fix",
    "source": "GitHub_M",
    "references": "https://github.com/axios/axios/security/advisories/GHSA-654m-c8p4-x5fp",
    "id": "CVE-2026-44489",
    "bulletinFamily": "",
    "cwe": [
        "CWE-113",
        "CWE-1321"
    ],
    "cvelist": null,
    "sourceData": "axios axios 1.15.2",
    "sourceHref": "",
    "cvss": {
        "score": 3.7,
        "severity": "LOW",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
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        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "axios",
    "version": "1.15.2",
    "vendor": "axios",
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}