RHSA-2026:97561 - Security Advisory

Topic

An update for crun is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

crun is a OCI runtime

Security Fix(es):

• crun: crun: rootful krun with passt executes container payload as host root (CVE-2026-84042)

Bug Fix(es) and Enhancement(s):

• crun should require container-selinux (JIRA:RHEL-169227)
• update to the latest upstream release (JIRA:RHEL-185741)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 9 x86_64
• Red Hat Enterprise Linux for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for Power, little endian 9 ppc64le
• Red Hat Enterprise Linux for ARM 64 9 aarch64

Fixes

• BZ - 2531222 - CVE-2026-84042 crun: crun: rootful krun with passt executes container payload as host root
• RHEL-169227 - crun should require container-selinux
• RHEL-185741 - update to the latest upstream release

CVEs

• CVE-2026-84042

References

• https://access.redhat.com/security/updates/classification/#important
• https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.9_release_notes/index