CVE-2026-8924: trailing dot domain super cookie

Overview

Severity

Critical (CVSS 9.1)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-07-04

Last Updated

2026-08-13

EPSS Score

0.66% (percentile: 50.3%)

Affected Products (2)

Other

• 21549-17084
• 21491-17084

Revision History

• 2026-07-04: Information published.
• 2026-07-07: Information published.
• 2026-07-09: Information published.
• 2026-08-13: Information published.