axios Server-Side Request Forgery (SSRF) Vulnerability - CVE-2026-42038
Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1 he fix for no_proxy hostname normalization bypass is incomplete. When no_proxylocalhost is set requests to 127.0.0.1 and ::1 still route through the proxy instead of bypassing it. The shouldBypassProxy() function does pure string matching it does not resolve IP aliases or loopback equivalents. This vulnerability is fixed in 1.15.1 and 0.31.1.