Upstream information

CVE-2026-18477 at MITRE

Description

A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows-including extracting into a newly created directory without using the -P option do not mitigate the issue.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (Red Hat) SUSE
Base Score 4.4 4.4
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
Attack Vector Local Local
Attack Complexity High High
Privileges Required Low Low
User Interaction Required Required
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact High High
Availability Impact None None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1274489 [NEW]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SLES15-SP5-CHOST-BYOS-SAP-CCloud tar Affected
SLES15-SP6-CHOST-BYOS tar Affected
SLES15-SP6-CHOST-BYOS-Aliyun tar Affected
SLES15-SP6-CHOST-BYOS-Azure tar Affected
SLES15-SP6-CHOST-BYOS-EC2 tar Affected
SLES15-SP6-CHOST-BYOS-GCE tar Affected
SLES15-SP6-CHOST-BYOS-GDC tar Affected
SLES15-SP6-CHOST-BYOS-SAP-CCloud tar Affected
SLES15-SP7-CHOST-BYOS-Aliyun tar Affected
SLES15-SP7-CHOST-BYOS-Azure tar Affected
SLES15-SP7-CHOST-BYOS-EC2 tar Affected
SLES15-SP7-CHOST-BYOS-GCE tar Affected
SLES15-SP7-CHOST-BYOS-GDC tar Affected
SLES15-SP7-CHOST-BYOS-SAP-CCloud tar Affected
SUSE Linux Enterprise Desktop 15 SP7 tar Affected
SUSE Linux Enterprise High Performance Computing 12 tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP7 tar Affected
SUSE Linux Enterprise Micro 5.3 tar Affected
SUSE Linux Enterprise Micro 5.4 tar Affected
SUSE Linux Enterprise Micro 5.5 tar Affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 tar Affected
SUSE Linux Enterprise Server 15 SP7 tar Affected
SUSE Linux Enterprise Server 16.0 tar Affected
SUSE Linux Enterprise Server 16.1 tar Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 tar Affected
SUSE Linux Enterprise Server for SAP applications 16.0 tar Affected
SUSE Linux Enterprise Server for SAP applications 16.1 tar Affected
SUSE Linux Micro 6.0 tar Affected
SUSE Linux Micro 6.1 tar Affected
SUSE Linux Micro 6.2 tar Affected
openSUSE Leap 16.0 tar Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SLES15-SP3-CHOST-BYOS-Aliyun tar Affected
SLES15-SP3-CHOST-BYOS-Azure tar Affected
SLES15-SP3-CHOST-BYOS-EC2 tar Affected
SLES15-SP3-CHOST-BYOS-GCE tar Affected
SLES15-SP3-CHOST-BYOS-SAP-CCloud tar Affected
SLES15-SP4-CHOST-BYOS tar Affected
SLES15-SP4-CHOST-BYOS-Aliyun tar Affected
SLES15-SP4-CHOST-BYOS-Azure tar Affected
SLES15-SP4-CHOST-BYOS-EC2 tar Affected
SLES15-SP4-CHOST-BYOS-GCE tar Affected
SLES15-SP4-CHOST-BYOS-SAP-CCloud tar Affected
SLES15-SP5-CHOST-BYOS-Aliyun tar Affected
SLES15-SP5-CHOST-BYOS-Azure tar Affected
SLES15-SP5-CHOST-BYOS-EC2 tar Affected
SLES15-SP5-CHOST-BYOS-GCE tar Affected
SLES15-SP5-CHOST-BYOS-GDC tar Affected
SUSE Linux Enterprise High Performance Computing 12 SP5 tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP5 tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS tar Affected
SUSE Linux Enterprise Module for Basesystem 15 SP4 tar Affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 tar Affected
SUSE Linux Enterprise Module for Basesystem 15 SP6 tar Affected
SUSE Linux Enterprise Server 12 SP5 tar Affected
SUSE Linux Enterprise Server 12 SP5-LTSS tar Affected
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security tar Affected
SUSE Linux Enterprise Server 15 SP4 tar Affected
SUSE Linux Enterprise Server 15 SP4-LTSS tar Affected
SUSE Linux Enterprise Server 15 SP5 tar Affected
SUSE Linux Enterprise Server 15 SP5-LTSS tar Affected
SUSE Linux Enterprise Server 15 SP6 tar Affected
SUSE Linux Enterprise Server 15 SP6-LTSS tar Affected
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 tar Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 tar Affected
SUSE Manager Proxy 4.3 tar Affected
SUSE Manager Proxy LTS 4.3 tar Affected
SUSE Manager Retail Branch Server 4.3 tar Affected
SUSE Manager Retail Branch Server LTS 4.3 tar Affected
SUSE Manager Server 4.3 tar Affected
SUSE Manager Server LTS 4.3 tar Affected
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 tar Affected
SUSE CaaS Platform 3.0 tar Affected
SUSE CaaS Platform 4.0 tar Affected
SUSE Enterprise Storage 6 tar Affected
SUSE Enterprise Storage 7 tar Affected
SUSE Enterprise Storage 7.1 tar Affected
SUSE Linux Enterprise Desktop 12 tar Affected
SUSE Linux Enterprise Desktop 12 SP1 tar Affected
SUSE Linux Enterprise Desktop 12 SP2 tar Affected
SUSE Linux Enterprise Desktop 12 SP3 tar Affected
SUSE Linux Enterprise Desktop 12 SP4 tar Affected
SUSE Linux Enterprise Desktop 15 tar Affected
SUSE Linux Enterprise Desktop 15 SP1 tar Affected
SUSE Linux Enterprise Desktop 15 SP2 tar Affected
SUSE Linux Enterprise Desktop 15 SP3 tar Affected
SUSE Linux Enterprise Desktop 15 SP4 tar Affected
SUSE Linux Enterprise Desktop 15 SP5 tar Affected
SUSE Linux Enterprise Desktop 15 SP6 tar Affected
SUSE Linux Enterprise High Performance Computing 12 SP1 tar Affected
SUSE Linux Enterprise High Performance Computing 12 SP2 tar Affected
SUSE Linux Enterprise High Performance Computing 12 SP3 tar Affected
SUSE Linux Enterprise High Performance Computing 12 SP4 tar Affected
SUSE Linux Enterprise High Performance Computing 15 tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS tar Affected
SUSE Linux Enterprise High Performance Computing 15 SP6 tar Affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS tar Affected
SUSE Linux Enterprise High Performance Computing 15-LTSS tar Affected
SUSE Linux Enterprise Micro 5.0 tar Affected
SUSE Linux Enterprise Micro 5.1 tar Affected
SUSE Linux Enterprise Micro 5.2 tar Affected
SUSE Linux Enterprise Module for Basesystem 15 tar Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 tar Affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 tar Affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 tar Affected
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT tar Affected
SUSE Linux Enterprise Real Time 15 SP2 tar Affected
SUSE Linux Enterprise Real Time 15 SP3 tar Affected
SUSE Linux Enterprise Real Time 15 SP4 tar Affected
SUSE Linux Enterprise Server 12 tar Affected
SUSE Linux Enterprise Server 12 SP1 tar Affected
SUSE Linux Enterprise Server 12 SP1-LTSS tar Affected
SUSE Linux Enterprise Server 12 SP2 tar Affected
SUSE Linux Enterprise Server 12 SP2-BCL tar Affected
SUSE Linux Enterprise Server 12 SP2-ESPOS tar Affected
SUSE Linux Enterprise Server 12 SP2-LTSS tar Affected
SUSE Linux Enterprise Server 12 SP3 tar Affected
SUSE Linux Enterprise Server 12 SP3-BCL tar Affected
SUSE Linux Enterprise Server 12 SP3-ESPOS tar Affected
SUSE Linux Enterprise Server 12 SP3-LTSS tar Affected
SUSE Linux Enterprise Server 12 SP4 tar Affected
SUSE Linux Enterprise Server 12 SP4-ESPOS tar Affected
SUSE Linux Enterprise Server 12 SP4-LTSS tar Affected
SUSE Linux Enterprise Server 12-LTSS tar Affected
SUSE Linux Enterprise Server 15 tar Affected
SUSE Linux Enterprise Server 15 SP1 tar Affected
SUSE Linux Enterprise Server 15 SP1-BCL tar Affected
SUSE Linux Enterprise Server 15 SP1-LTSS tar Affected
SUSE Linux Enterprise Server 15 SP2 tar Affected
SUSE Linux Enterprise Server 15 SP2-BCL tar Affected
SUSE Linux Enterprise Server 15 SP2-LTSS tar Affected
SUSE Linux Enterprise Server 15 SP3 tar Affected
SUSE Linux Enterprise Server 15 SP3-BCL tar Affected
SUSE Linux Enterprise Server 15 SP3-LTSS tar Affected
SUSE Linux Enterprise Server 15-LTSS tar Affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 tar Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP1 tar Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 tar Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 tar Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 tar Affected
SUSE Linux Enterprise Server for SAP Applications 15 tar Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 tar Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 tar Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 tar Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 tar Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 tar Affected
SUSE Manager Proxy 4.0 tar Affected
SUSE Manager Proxy 4.1 tar Affected
SUSE Manager Proxy 4.2 tar Affected
SUSE Manager Retail Branch Server 4.0 tar Affected
SUSE Manager Retail Branch Server 4.1 tar Affected
SUSE Manager Retail Branch Server 4.2 tar Affected
SUSE Manager Server 4.0 tar Affected
SUSE Manager Server 4.1 tar Affected
SUSE Manager Server 4.2 tar Affected
SUSE OpenStack Cloud 7 tar Affected
SUSE OpenStack Cloud 8 tar Affected
SUSE OpenStack Cloud 9 tar Affected
SUSE OpenStack Cloud Crowbar 8 tar Affected
SUSE OpenStack Cloud Crowbar 9 tar Affected
openSUSE Leap 15.3 tar Affected
openSUSE Leap 15.4 tar Affected
openSUSE Leap 15.5 tar Affected
openSUSE Leap 15.6 tar Affected
openSUSE Leap Micro 5.2 tar Affected
openSUSE Leap Micro 5.3 tar Affected
openSUSE Leap Micro 5.4 tar Affected
openSUSE Leap Micro 5.5 tar Affected
Products at an unknown state of their lifecycle.
SLES-CHOST-BYOS-Aliyun tar Affected
SLES-CHOST-BYOS-Azure tar Affected
SLES-CHOST-BYOS-EC2 tar Affected
SLES-CHOST-BYOS-GCE tar Affected
SLES-CHOST-BYOS-GDC tar Affected
SLES-CHOST-BYOS-SAP-CCloud tar Affected
Container Status
bci/bci-sle15-kernel-module-devel
bci/bci-sle15-kernel-module-devel:15.5
bci/bci-sle15-kernel-module-devel:15.6
bci/kiwi
bci/node:16
bci/spack
bci/spack:0.23
kiwi-templates-Minimal
kiwi-templates-Minimal-Cloud-sap
kiwi-templates-Minimal-MS-HyperV-sap
kiwi-templates-Minimal-VMware-sap
kiwi-templates-Minimal-kvm-and-xen-sap
rancher/elemental-teal-iso/5.4
rancher/elemental-teal-rt/5.3
rancher/elemental-teal-rt/5.4
rancher/elemental-teal/5.3
rancher/elemental-teal/5.4
suse/hpc/warewulf4-x86_64/sle-hpc-node
suse/ltss/sle15.3/sle15
suse/ltss/sle15.4/sle15
suse/ltss/sle15.5/sle15
suse/ltss/sle15.6/sle15
suse/manager/5.0/x86_64/server
suse/multi-linux-manager/5.1/x86_64/server
suse/multi-linux-manager/5.2/x86_64/server
suse/postgres
suse/postgres:14
suse/postgres:16
suse/postgres:16.14
suse/postgres:17
suse/postgres:17.10
suse/sle-micro-rancher/5.2
suse/sle-micro-rancher/5.3
suse/sle-micro-rancher/5.4
suse/sle-micro/5.0/toolbox
suse/sle-micro/5.1/toolbox
suse/sle-micro/5.2/toolbox
suse/sle-micro/5.3/toolbox
suse/sle-micro/5.4/toolbox
suse/sle-micro/5.5
suse/sle-micro/5.5/toolbox
suse/sle-micro/base-5.5
suse/sle15
suse/sle15:15.5
suse/sle15:15.6
suse/sles-16.1-kubevirt-minimal
suse/sles/15.3/cdi-importer:1.37.1
suse/sles/15.3/cdi-uploadserver:1.37.1
suse/sles/15.3/libguestfs-tools:0.45.0
suse/sles/15.4/cdi-importer:1.43.0
suse/sles/15.4/cdi-uploadserver:1.43.0
suse/sles/15.4/libguestfs-tools:0.49.0
suse/sles/15.4/virt-launcher:0.49.0
suse/sles/15.5/cdi-apiserver:1.55.0
suse/sles/15.5/cdi-cloner:1.55.0
suse/sles/15.5/cdi-controller:1.55.0
suse/sles/15.5/cdi-importer:1.55.0
suse/sles/15.5/cdi-operator:1.55.0
suse/sles/15.5/cdi-uploadproxy:1.55.0
suse/sles/15.5/cdi-uploadserver:1.55.0
suse/sles/15.5/libguestfs-tools:0.58.0
suse/sles/15.5/virt-api:0.58.0
suse/sles/15.5/virt-controller:0.58.0
suse/sles/15.5/virt-exportproxy:0.58.0
suse/sles/15.5/virt-exportserver:0.58.0
suse/sles/15.5/virt-handler:0.58.0
suse/sles/15.5/virt-launcher:0.58.0
suse/sles/15.5/virt-operator:0.58.0
suse/sles/15.6/cdi-cloner:1.58.0
suse/sles/15.6/cdi-importer:1.58.0
suse/sles/15.6/cdi-uploadserver:1.58.0
suse/sles/15.6/libguestfs-tools:1.1.1
suse/sles/15.6/virt-exportserver:1.1.1
suse/sles/15.6/virt-handler:1.1.1
suse/sles/15.6/virt-launcher:1.1.1
suse/sles/15.7/cdi-cloner:1.58.0
suse/sles/15.7/cdi-importer:1.58.0
suse/sles/15.7/cdi-uploadserver:1.58.0
suse/sles/15.7/libguestfs-tools:1.5.0
suse/sles/15.7/virt-exportserver:1.5.0
suse/sles/15.7/virt-handler:1.5.0
suse/sles/15.7/virt-launcher:1.5.0
suse/sles/16.0/toolbox
trento/trento-runner
tarAffected


SUSE Timeline for this CVE

CVE page created: Fri Aug 7 17:25:43 2026
CVE page last modified: Fri Aug 7 19:31:01 2026