Upstream information

CVE-2026-23950 at MITRE

Description

node-tar,a Tar for Node.js, has a race condition vulnerability in versions up to and including 7.5.3. This is due to an incomplete handling of Unicode path collisions in the `path-reservations` system. On case-insensitive or normalization-insensitive filesystems (such as macOS APFS, In which it has been tested), the library fails to lock colliding paths (e.g., `ß` and `ss`), allowing them to be processed in parallel. This bypasses the library's internal concurrency safeguards and permits Symlink Poisoning attacks via race conditions. The library uses a `PathReservations` system to ensure that metadata checks and file operations for the same path are serialized. This prevents race conditions where one entry might clobber another concurrently. This is a Race Condition which enables Arbitrary File Overwrite. This vulnerability affects users and systems using node-tar on macOS (APFS/HFS+). Because of using `NFD` Unicode normalization (in which `ß` and `ss` are different), conflicting paths do not have their order properly preserved under filesystems that ignore Unicode normalization (e.g., APFS (in which `ß` causes an inode collision with `ss`)). This enables an attacker to circumvent internal parallelization locks (`PathReservations`) using conflicting filenames within a malicious tar archive. The patch in version 7.5.4 updates `path-reservations.js` to use a normalization form that matches the target filesystem's behavior (e.g., `NFKD`), followed by first `toLocaleLowerCase('en')` and then `toLocaleUpperCase('en')`. As a workaround, users who cannot upgrade promptly, and who are programmatically using `node-tar` to extract arbitrary tarball data should filter out all `SymbolicLink` entries (as npm does) to defend against arbitrary file writes via this file system entry name collision issue.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (GitHub) National Vulnerability Database
Base Score 8.8 5.9
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network Network
Attack Complexity Low High
Privileges Required None None
User Interaction Required None
Scope Changed Unchanged
Confidentiality Impact Low None
Integrity Impact High High
Availability Impact Low None
CVSSv3 Version 3.1 3.1
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Liberty Linux 10
  • sgx-common >= 2.26-7.el10
  • sgx-libs >= 2.26-7.el10
  • sgx-mpa >= 2.26-7.el10
  • sgx-pccs >= 2.26-7.el10
  • sgx-pccs-admin >= 2.26-7.el10
  • sgx-pckid-tool >= 2.26-7.el10
  • tdx-qgs >= 2.26-7.el10
 Patchnames:
RHSA-2026:18480
SUSE Liberty Linux 9
  • sgx-common >= 2.26-7.el9
  • sgx-libs >= 2.26-7.el9
  • sgx-mpa >= 2.26-7.el9
  • sgx-pccs >= 2.26-7.el9
  • sgx-pccs-admin >= 2.26-7.el9
  • sgx-pckid-tool >= 2.26-7.el9
  • tdx-qgs >= 2.26-7.el9
 Patchnames:
RHSA-2026:18868

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 Analysis
SLES15-SP6-CHOST-BYOS tar Analysis
SLES15-SP6-CHOST-BYOS-Aliyun tar Analysis
SLES15-SP6-CHOST-BYOS-Azure tar Analysis
SLES15-SP6-CHOST-BYOS-EC2 tar Analysis
SLES15-SP6-CHOST-BYOS-GCE tar Analysis
SLES15-SP6-CHOST-BYOS-GDC tar Analysis
SLES15-SP6-CHOST-BYOS-SAP-CCloud tar Analysis
SLES15-SP7-CHOST-BYOS-Aliyun tar Analysis
SLES15-SP7-CHOST-BYOS-Azure tar Analysis
SLES15-SP7-CHOST-BYOS-EC2 tar Analysis
SLES15-SP7-CHOST-BYOS-GCE tar Analysis
SLES15-SP7-CHOST-BYOS-GDC tar Analysis
SLES15-SP7-CHOST-BYOS-SAP-CCloud tar Analysis
SUSE Linux Enterprise Desktop 15 SP7 tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP7 tar Analysis
SUSE Linux Enterprise Micro 5.3 tar Analysis
SUSE Linux Enterprise Micro 5.4 tar Analysis
SUSE Linux Enterprise Micro 5.5 tar Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP7 tar Analysis
SUSE Linux Enterprise Server 15 SP7 tar Analysis
SUSE Linux Enterprise Server 16.0 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP7 tar Analysis
SUSE Linux Enterprise Server for SAP applications 16.0 tar Analysis
SUSE Linux Micro 6.0 tar Analysis
SUSE Linux Micro 6.1 tar Analysis
SUSE Linux Micro 6.2 tar Analysis
openSUSE Leap 16.0 tar Analysis
Products under Long Term Service Pack support and receiving important and critical security fixes.
SLES15-SP3-CHOST-BYOS-Aliyun tar Analysis
SLES15-SP3-CHOST-BYOS-Azure tar Analysis
SLES15-SP3-CHOST-BYOS-EC2 tar Analysis
SLES15-SP3-CHOST-BYOS-GCE tar Analysis
SLES15-SP3-CHOST-BYOS-SAP-CCloud tar Analysis
SLES15-SP4-CHOST-BYOS tar Analysis
SLES15-SP4-CHOST-BYOS-Aliyun tar Analysis
SLES15-SP4-CHOST-BYOS-Azure tar Analysis
SLES15-SP4-CHOST-BYOS-EC2 tar Analysis
SLES15-SP4-CHOST-BYOS-GCE tar Analysis
SLES15-SP4-CHOST-BYOS-SAP-CCloud tar Analysis
SLES15-SP5-CHOST-BYOS-Aliyun tar Analysis
SLES15-SP5-CHOST-BYOS-Azure tar Analysis
SLES15-SP5-CHOST-BYOS-EC2 tar Analysis
SLES15-SP5-CHOST-BYOS-GCE tar Analysis
SLES15-SP5-CHOST-BYOS-GDC tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP4 tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP5 tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS tar Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP4 tar Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP5 tar Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP6 tar Analysis
SUSE Linux Enterprise Server 12 SP5 tar Analysis
SUSE Linux Enterprise Server 12 SP5-LTSS tar Analysis
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security tar Analysis
SUSE Linux Enterprise Server 15 SP4 tar Analysis
SUSE Linux Enterprise Server 15 SP4-LTSS tar Analysis
SUSE Linux Enterprise Server 15 SP5 tar Analysis
SUSE Linux Enterprise Server 15 SP5-LTSS tar Analysis
SUSE Linux Enterprise Server 15 SP6 tar Analysis
SUSE Linux Enterprise Server 15 SP6-LTSS tar Analysis
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP6 tar Analysis
SUSE Manager Proxy 4.3 tar Analysis
SUSE Manager Proxy LTS 4.3 tar Analysis
SUSE Manager Retail Branch Server 4.3 tar Analysis
SUSE Manager Retail Branch Server LTS 4.3 tar Analysis
SUSE Manager Server 4.3 tar Analysis
SUSE Manager Server LTS 4.3 tar Analysis
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 tar Analysis
SUSE CaaS Platform 3.0 tar Analysis
SUSE CaaS Platform 4.0 tar Analysis
SUSE Enterprise Storage 6 tar Analysis
SUSE Enterprise Storage 7 tar Analysis
SUSE Enterprise Storage 7.1 tar Analysis
SUSE Linux Enterprise Desktop 12 tar Analysis
SUSE Linux Enterprise Desktop 12 SP1 tar Analysis
SUSE Linux Enterprise Desktop 12 SP2 tar Analysis
SUSE Linux Enterprise Desktop 12 SP3 tar Analysis
SUSE Linux Enterprise Desktop 12 SP4 tar Analysis
SUSE Linux Enterprise Desktop 15 tar Analysis
SUSE Linux Enterprise Desktop 15 SP1 tar Analysis
SUSE Linux Enterprise Desktop 15 SP2 tar Analysis
SUSE Linux Enterprise Desktop 15 SP3 tar Analysis
SUSE Linux Enterprise Desktop 15 SP4 tar Analysis
SUSE Linux Enterprise Desktop 15 SP5 tar Analysis
SUSE Linux Enterprise Desktop 15 SP6 tar Analysis
SUSE Linux Enterprise High Performance Computing 15 tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1 tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2 tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3 tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS tar Analysis
SUSE Linux Enterprise High Performance Computing 15 SP6 tar Analysis
SUSE Linux Enterprise High Performance Computing 15-ESPOS tar Analysis
SUSE Linux Enterprise High Performance Computing 15-LTSS tar Analysis
SUSE Linux Enterprise Micro 5.0 tar Analysis
SUSE Linux Enterprise Micro 5.1 tar Analysis
SUSE Linux Enterprise Micro 5.2 tar Analysis
SUSE Linux Enterprise Module for Basesystem 15 tar Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP1 tar Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP2 tar Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP3 tar Analysis
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT tar Analysis
SUSE Linux Enterprise Real Time 15 SP2 tar Analysis
SUSE Linux Enterprise Real Time 15 SP3 tar Analysis
SUSE Linux Enterprise Real Time 15 SP4 tar Analysis
SUSE Linux Enterprise Server 12 tar Analysis
SUSE Linux Enterprise Server 12 SP1 tar Analysis
SUSE Linux Enterprise Server 12 SP1-LTSS tar Analysis
SUSE Linux Enterprise Server 12 SP2 tar Analysis
SUSE Linux Enterprise Server 12 SP2-BCL tar Analysis
SUSE Linux Enterprise Server 12 SP2-ESPOS tar Analysis
SUSE Linux Enterprise Server 12 SP2-LTSS tar Analysis
SUSE Linux Enterprise Server 12 SP3 tar Analysis
SUSE Linux Enterprise Server 12 SP3-BCL tar Analysis
SUSE Linux Enterprise Server 12 SP3-ESPOS tar Analysis
SUSE Linux Enterprise Server 12 SP3-LTSS tar Analysis
SUSE Linux Enterprise Server 12 SP4 tar Analysis
SUSE Linux Enterprise Server 12 SP4-ESPOS tar Analysis
SUSE Linux Enterprise Server 12 SP4-LTSS tar Analysis
SUSE Linux Enterprise Server 12-LTSS tar Analysis
SUSE Linux Enterprise Server 15 tar Analysis
SUSE Linux Enterprise Server 15 SP1 tar Analysis
SUSE Linux Enterprise Server 15 SP1-BCL tar Analysis
SUSE Linux Enterprise Server 15 SP1-LTSS tar Analysis
SUSE Linux Enterprise Server 15 SP2 tar Analysis
SUSE Linux Enterprise Server 15 SP2-BCL tar Analysis
SUSE Linux Enterprise Server 15 SP2-LTSS tar Analysis
SUSE Linux Enterprise Server 15 SP3 tar Analysis
SUSE Linux Enterprise Server 15 SP3-BCL tar Analysis
SUSE Linux Enterprise Server 15 SP3-LTSS tar Analysis
SUSE Linux Enterprise Server 15-LTSS tar Analysis
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP1 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP2 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP3 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP4 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 15 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP1 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP2 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP3 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP4 tar Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP5 tar Analysis
SUSE Manager Proxy 4.0 tar Analysis
SUSE Manager Proxy 4.1 tar Analysis
SUSE Manager Proxy 4.2 tar Analysis
SUSE Manager Retail Branch Server 4.0 tar Analysis
SUSE Manager Retail Branch Server 4.1 tar Analysis
SUSE Manager Retail Branch Server 4.2 tar Analysis
SUSE Manager Server 4.0 tar Analysis
SUSE Manager Server 4.1 tar Analysis
SUSE Manager Server 4.2 tar Analysis
SUSE OpenStack Cloud 7 tar Analysis
SUSE OpenStack Cloud 8 tar Analysis
SUSE OpenStack Cloud 9 tar Analysis
SUSE OpenStack Cloud Crowbar 8 tar Analysis
SUSE OpenStack Cloud Crowbar 9 tar Analysis
openSUSE Leap 15.3 tar Analysis
openSUSE Leap 15.4 tar Analysis
openSUSE Leap 15.5 tar Analysis
openSUSE Leap 15.6 tar Analysis
openSUSE Leap Micro 5.2 tar Analysis
openSUSE Leap Micro 5.3 tar Analysis
openSUSE Leap Micro 5.4 tar Analysis
openSUSE Leap Micro 5.5 tar Analysis
Products at an unknown state of their lifecycle.
SLES-CHOST-BYOS-Aliyun tar Analysis
SLES-CHOST-BYOS-Azure tar Analysis
SLES-CHOST-BYOS-EC2 tar Analysis
SLES-CHOST-BYOS-GCE tar Analysis
SLES-CHOST-BYOS-GDC tar Analysis
SLES-CHOST-BYOS-SAP-CCloud tar Analysis
Container Status
bci/bci-sle15-kernel-module-devel:15.5
bci/kiwi
bci/node:16
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/manager/5.0/x86_64/server
suse/multi-linux-manager/5.1/x86_64/server
suse/multi-linux-manager/5.1/x86_64/server-postgresql
suse/multi-linux-manager/5.2/x86_64/server
suse/postgres:14
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/sle15:15.5
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		 tarAnalysis

SUSE Timeline for this CVE

CVE page created: Tue Jan 20 04:02:26 2026
CVE page last modified: Thu Jun 11 12:33:56 2026