Security Advisory

CVE-2026-19931

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-06 17:47:43

Last updated 2026-09-15 06:02:51

Assigner curl

CVSS score 9.8

State PUBLISHED

Description

A flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given hostname using Negotiate authentication, when the initial request is done using empty credentials. This can make user B's request get sent over user A's previously authenticated connection.

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