CVE-2026-86847: Red Hat Fast Datapath For Rhel 10

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

A flaw was found in DPDK lib/vhost vhost-crypto. Write-back chain cleanup can follow an uninitialized next pointer when mapping a guest descriptor fails, causing the host vhost-crypto process to hang or crash.

Affected products

• Red Hat Fast Datapath For Rhel 10
• Red Hat Fast Datapath For Rhel 8
• Red Hat Fast Datapath For Rhel 9
• Red Hat Red Hat Enterprise Linux 10
• Red Hat Red Hat Enterprise Linux 8
• Red Hat Red Hat Enterprise Linux 9
• Red Hat Red Hat Openshift Container Platform 4
• Red Hat Red Hat Openstack Platform 13 Queens

Published 2026-10-14. Last modified 2026-10-14.