Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products5

• Red Hat Hardened Images
• valkey-main@aarch64 as a component of Red Hat Hardened Images
• valkey-main@noarch as a component of Red Hat Hardened Images
• valkey-main@src as a component of Red Hat Hardened Images
• valkey-main@x86_64 as a component of Red Hat Hardened Images

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: To mitigate this issue, restrict network access to the Valkey cluster bus port. Configure network access control lists (ACLs) or firewall rules to ensure that only trusted hosts can connect to the cluster bus port. This limits the attack surface by preventing unauthorized actors from sending malicious clusterbus packets.

🔗 References (5)

• selfhttps://access.redhat.com/errata/RHSA-2026:8753
• externalhttps://images.redhat.com/
• externalhttps://access.redhat.com/security/cve/CVE-2026-21863
• externalhttps://access.redhat.com/security/updates/classification/
• selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_8753.json