CVE-2026-44487 Axios: Proxy-Authorization Credential Leak to Origin Server Across HTTP-to-HTTPS Redirect in Axios Node.js HTTP Adapter
An attacker controlling a redirect can steal proxy credentials from Axios Node.js clients, exposing sensitive authentication data to the origin server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44487?
CVE-2026-44487 is a high-severity vulnerability in axios, published on 11 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-201
Which versions are affected by CVE-2026-44487?
4 open source packages ship an affected version, including axios. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
axios npm | All versions | 0.32.0 |
axios npm | All versions | 0.32.0 |
axios npm | From 1.0.0 | 1.16.0 |
axios npm | From 1.0.0 | 1.16.0 |
Products include Axios Axios.
How do I fix CVE-2026-44487?
Upgrade axios to a fixed version for your release line: 0.32.0 or 1.16.0.
Is CVE-2026-44487 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44487 exists.
Other vulnerabilities in axios
- CVE-2026-44494 Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
- CVE-2026-44492 axios's shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)
- CVE-2026-67320 axios before 0.33.0 Prototype Pollution via Node HTTP adapter
- CVE-2025-27152 Possible SSRF and Credential Leakage via Absolute URL in axios Requests
- CVE-2026-44486 Axios: Proxy-Authorization header leaks to redirect target when proxy is re-evaluated to direct connection
Sources
Also known as CLEANSTART-2026-OH97731, DEBIAN-CVE-2026-44487, ECHO-9f95-599d-c565, GHSA-p92q-9vqr-4j8v, MINI-29gm-mr99-4hwq, MINI-2qwp-3q23-f4rm and 25 more.