p PatchFirst

PatchFirst · Latest vulnerabilities

urllib vulnerabilities

Vulnerabilities published for urllib in the last 30 days: 0. Listed in the KEV catalogue: 0.

Filter vulnerabilities
Clear filters

Vulnerability: 1

  1. CVE-2026-55553

    High · CVSS 7.5EPSS 0.66%Fix available

    urllib: Cross-origin redirects preserve credential-bearing request headers, leading to potential credential leakage

    urllib is an HTTP client for Node.js that supports authentication, redirects, timeouts, and other request features. Prior to 4.9.1 and 2.44.1, urllib follows redirects through followRedirect but reuses caller-supplied options across origins. In src/HttpClient.ts, #requestInternal recursively calls this.#requestInternal(nextUrl.href, options, requestContext), causing options.headers and auth or digestAuth values to be reused when the redirect target has a different scheme, host, or port. Authorization, Cookie, Proxy-Authorization, x-api-key, x-auth-token, and x-access-token can therefore be sent to an attacker-controlled redirected origin, exp

    • Update to 2.44.1
    • Update to 4.9.1
    Published Updated

Check your server

Check your installed stack and versions against the current vulnerability feeds.

Check your server →