CVE-2026-44486 Axios: Proxy-Authorization header leaks to redirect target when proxy is re-evaluated to direct connection
Axios leaks proxy credentials to redirect targets when switching from proxy to direct connection, exposing sensitive authentication data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44486?
CVE-2026-44486 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’ Node.js HTTP adapter can leak proxy credentials to a redirect target in affected versions. When a request is sent through an authenticated proxy, Axios may add a Proxy-Authorization header. If Axios then follows a redirect and the redirected request is no longer sent through that proxy, the stale Proxy-Authorization header can remain on the redirected request and be sent to the redirect target. This affects Node.js's use of Axios with automatic redirects enabled and an authenticated proxy configuration. Browser adapters are not affected. This vulnerability is fixed in 0.32.0 and 1.16.0.
Which versions are affected by CVE-2026-44486?
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-2026-44486?
Upgrade axios to a fixed version for your release line: 0.32.0 or 1.16.0.
Is CVE-2026-44486 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44486 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-2026-44487 Axios: Proxy-Authorization Credential Leak to Origin Server Across HTTP-to-HTTPS Redirect in Axios Node.js HTTP Adapter
- CVE-2025-27152 Possible SSRF and Credential Leakage via Absolute URL in axios Requests
Sources
Also known as CLEANSTART-2026-IQ36208, CLSA-2026-1785291681, CLSA-2026-1785291685, CLSA-2026-1785291689, CLSA-2026-1785291889, CLSA-2026-1785291891 and 30 more.