CVE-2026-23479

Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.

Affected products

Red Os, Redis, Rocky Linux, Redis-Server

Redis

< 8.6.3

Fix

Available

CVSS 3.1

8.8 HIGH

EPSS

1.3% (68th percentile)

Weakness

CWE-416

NVD status

Modified

Published

2026-05-05