CVE-2026-27623: Valkey has Pre-Authentication DOS from malformed RESP request

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Feb

Released

2026-03-25

Last Updated

2026-08-07

EPSS Score

0.35% (percentile: 28.9%)

Affected Products (1)

Other

• 21074-17084

Revision History

• 2026-03-25: Information published.
• 2026-08-07: Information published.