CVE-2026-44489

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.

Database specific

{
    "cwe_ids": [
        "CWE-113",
        "CWE-1321"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44489.json",
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/axios/axios

Affected ranges

Type

GIT

Repo

https://github.com/axios/axios

Events

Introduced

582934382e4e0e0bcb679c628071a4203e93cf57

Last affected

582934382e4e0e0bcb679c628071a4203e93cf57

Database specific

{
    "cpe": "cpe:2.3:a:axios:axios:1.15.2:*:*:*:*:node.js:*:*",
    "source": [
        "AFFECTED_FIELD",
        "CPE_STRING"
    ],
    "extracted_events": [
        {
            "introduced": "1.15.2"
        },
        {
            "last_affected": "1.15.2"
        }
    ]
}

Affected versions

1.*

1.15.2

v1.*

v1.15.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44489.json"