A flaw was found in the containers/storage library. A crafted tar archive containing a malicious whiteout header (e.g. victim/.wh.) can cause the extraction destination directory to be replaced with an arbitrary file when processed by storage/pkg/archive.UnpackLayer, ApplyLayer, or ApplyUncompressedLayer.

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Fixes

Solution

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Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

History

Tue, 15 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in the containers/storage library. A crafted tar archive containing a malicious whiteout header (e.g. victim/.wh.) can cause the extraction destination directory to be replaced with an arbitrary file when processed by storage/pkg/archive.UnpackLayer, ApplyLayer, or ApplyUncompressedLayer.
Title Podman: buildah: skopeo: containers/storage: malicious tar whiteout header allows replacement of extraction destination directory
First Time appeared Redhat
Redhat ansible Automation Platform
Redhat container Native Virtualization
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
Redhat openshift Devspaces
Redhat quay
Weaknesses CWE-59
CPEs cpe:/a:redhat:ansible_automation_platform:2
cpe:/a:redhat:container_native_virtualization:4
cpe:/a:redhat:hummingbird:1
cpe:/a:redhat:openshift:4
cpe:/a:redhat:openshift_devspaces:3
cpe:/a:redhat:quay:3
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat ansible Automation Platform
Redhat container Native Virtualization
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
Redhat openshift Devspaces
Redhat quay
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-15T16:25:16.090Z

Reserved: 2026-08-25T12:24:09.488Z

Link: CVE-2026-79699

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-15T17:17:27.083

Modified: 2026-09-15T17:17:27.083

Link: CVE-2026-79699

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses