Medium severity · published Sep 15, 2026
CVE-2026-79699
Podman: buildah: skopeo: containers/storage: malicious tar whiteout header allows replacement of extraction destination directory
4.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Ansible Automation Platform 2 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Container Platform 4 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Dev Spaces · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Virtualization 4 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Quay 3 · Red Hat
All versions, or not specified · source: vendor
Affected product
RH
Red Hat Ansible Automation Platform 2
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-79699
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-79699
vdb-entry
https://access.redhat.com/security/cve/CVE-2026-79699
issue-tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2523408
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