RLSA-2026:97562: Important: skopeo security, bug fix, and enhancement update
The skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and verify files.
Security Fix(es):
net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811)
docker: Moby/Docker Engine: Arbitrary Code Execution via malicious container image and compressed archive upload (CVE-2026-41567)
Bug Fix(es) and Enhancement(s):
Update skopeo to 1.22.2 [rhel-9.9] (JIRA:Rocky Linux-170520)
update to the latest upstream release (JIRA:Rocky Linux-185740)
switch skopeo to sustaining-engineering GitLab release-1.22 branch and bump epoch (JIRA:Rocky Linux-220456)
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 Rocky Linux 9 Release Notes linked from the References section.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
rocky-linux/skopeoto a version that resolves this vulnerability.Fixed in 3:1.22.2-4.el9 - Upgrade
Upgrade
rocky-linux/skopeo-debuginfoto a version that resolves this vulnerability.Fixed in 3:1.22.2-4.el9 - Upgrade
Upgrade
rocky-linux/skopeo-debugsourceto a version that resolves this vulnerability.Fixed in 3:1.22.2-4.el9 - Upgrade
Upgrade
rocky-linux/skopeo-teststo a version that resolves this vulnerability.Fixed in 3:1.22.2-4.el9 - Upgrade
Upgrade
skopeoto a version that resolves this vulnerability.Fixed in 1.22.2
Event History
Frequently Asked Questions
What level of access does the published severity vector indicate an attacker needs?
The published CVSS vector indicates network access, low attack complexity, no privileges, and no user interaction. Its stated impact is on availability, with no confidentiality or integrity impact in that vector.
Which installed packages should be checked when assessing exposure?
Check for rocky-linux/skopeo and its related rocky-linux/skopeo-debuginfo, rocky-linux/skopeo-debugsource, and rocky-linux/skopeo-tests packages. The advisory includes security fixes for skopeo and identifies an update to version 1.22.2 for RHEL 9.9.
What security issues are included in this update?
The update addresses a denial of service in Go's net package involving long CNAME responses in LookupCNAME (CVE-2026-33811) and an arbitrary code execution issue involving a malicious container image and compressed archive upload in Moby/Docker Engine (CVE-2026-41567).