Use After Free Affecting valkey package, versions <8.1.7-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.1% (28th percentile)

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  • Snyk IDSNYK-ALPINE322-VALKEY-16636618
  • published11 May 2026
  • disclosed5 May 2026

Introduced: 5 May 2026

NewCVE-2026-23479  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Alpine:3.22 valkey to version 8.1.7-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream valkey package and not the valkey package as distributed by Alpine. See How to fix? for Alpine:3.22 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1