CVE-2026-86413: Negotiate credentials sent to redirected origin

Overview

Severity

Medium (CVSS 5.9)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

Exploit Status

Not Exploited

Patch Tuesday

2026-Oct

Released

2026-10-23

EPSS Score

0.31% (percentile: 22.8%)

Affected Products (2)

Other

• 21840-17084
• 0-17084

Revision History

• 2026-10-23: Information published.