Security Advisory

CVE-2026-19931

CVSS N/A
UNKNOWN

Vulnerability 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.
Published Date 2026-09-06T18:17:20.733
Data Feed NIST National Vulnerability Database