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Use After Free The advisory has been revoked - it doesn't affect any version of package valkey-devel  (opens in a new tab)

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EPSS
1.51% (74th percentile)

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  • Snyk IDSNYK-RHEL10-VALKEYDEVEL-16730142
  • published17 May 2026
  • disclosed5 May 2026
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Introduced: 5 May 2026

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

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream valkey-devel package and not the valkey-devel package as distributed by RHEL.

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.