Security Advisory

CVE-2026-84042

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-10 08:24:50

Last updated 2026-09-15 16:23:21

Assigner redhat

CVSS score 7.8

State PUBLISHED

Description

A flaw was found in crun. When crun is built with libkrun and a container is started rootful with passt networking (krun.use_passt), crun can execute attacker-controlled payload from the container image with host root privileges. The issue is a regression in crun 1.29. It affects crun >= 1.29

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