CVE-2026-94265

CVE-2026-94265 · Authorization: Negotiate sent to foreign origin

This page contains facts from public vulnerability sources. Check the original advisory before updating.

When processing an HTTP redirect to a URL containing userinfo (a `username:password` component), curl might erroneously retain and re-transmit the original host's HTTP Negotiate authentication state. Consequently, a malicious server can trigger a redirect containing arbitrary userinfo to force curl to send a freshly minted Kerberos ticket—generated using the ambient identity of the client process to an untrusted third-party host, effectively bypassing the domain-scoping restrictions normally enforced by the absence of `--location-trusted`.

EPSS 0.3%

Published

2026-10-20T20:26:18.061Z

Updated

2026-10-20T20:26:18.061Z

Stack: system

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