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CVE-2026-44487

Axios: Proxy-Authorization Credential Leak to Origin Server Across HTTP-to-HTTPS Redirect in Axios Node.js HTTP Adapter

Impact

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios’s Node.js HTTP adapter may forward a Proxy-Authorization header to a redirected origin during specific proxy-to-direct redirect flows. This affects Node.js usage, where an initial HTTP request is sent through an authenticated HTTP proxy, redirects are followed, and the redirected URL is no longer proxied. Under affected redirect shapes, the final origin can receive the proxy credential that was intended only for the outbound proxy. This vulnerability is fixed in 0.32.0 and 1.16.0.

Affected packages

EcosystemPackageAffectedFixed in
npmaxios>= 1.0.0, < 1.16.01.16.0

Affected products

VendorProductAffected versions
AxiosAxios
before 0.32.0
from 1.0.0 before 1.16.0

Weakness classification

CWE-201

References