CVE-2026-86412: server-set cookie erases cookie jar

Overview

Severity

Low (CVSS 3.3)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Oct

Released

2026-10-23

EPSS Score

0.29% (percentile: 20.5%)

Affected Products (2)

Other

• 21840-17084
• 21918-17084

Revision History

• 2026-10-23: Information published.