Security vulnerabilities and automated fixes for proxy security issues
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A high-severity vulnerability (CVE-2026-44486) in Axios versions prior to 1.16.0 caused Proxy-Authorization headers to leak to redirect targets when the HTTP client re-evaluated proxy settings and switched to a direct connection. This information disclosure bug exposed sensitive proxy credentials to unintended destinations, and was fixed by upgrading from Axios 1.15.2 to 1.18.0 in the client application.