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Fencer Vulns
high 8.2

CVE-2026-24842 json

node-tar Vulnerable to Arbitrary File Creation/Overwrite via Hardlink Path Traversal

published 2026-01-28 9 mo ago modified 2026-09-10 1 mo ago also EUVD-2026-4909 , GHSA-34x7-hfp2-rc4v

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

node-tar,a Tar for Node.js, contains a vulnerability in versions prior to 7.5.7 where the security check for hardlink entries uses different path resolution semantics than the actual hardlink creation logic. This mismatch allows an attacker to craft a malicious TAR archive that bypasses path traversal protections and creates hardlinks to arbitrary files outside the extraction directory. Version 7.5.7 contains a fix for the issue.

Patch / fix

  • npm tar 7.5.7
  • Red Hat Red Hat Enterprise Linux 10 0:2.26-7.el10
  • Red Hat Red Hat Enterprise Linux 9 0:2.26-7.el9
  • Red Hat Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 0:7.3.18-3.GA_redhat_00001.1.el7eap
  • Red Hat Network Observability (NETOBSERV) 1.11.0 1771227610, 1771227650
  • Red Hat Red Hat OpenShift Dev Spaces 3.27 1774448966, 1774476526
  • Red Hat Red Hat Trusted Artifact Signer 1.3 1773308315
  • node-tar Debian 14 6.2.1+ds1+~cs6.1.13-10

debian advisories DEBIAN-CVE-2026-24842

  • linux-sgx RHEL 9 2.26-7.el9
  • sgx-mpa RHEL 9 2.26-7.el9
  • tdx-qgs RHEL 9 2.26-7.el9
  • sgx-libs RHEL 9 2.26-7.el9
  • sgx-pccs RHEL 9 2.26-7.el9
  • sgx-common RHEL 9 2.26-7.el9
  • sgx-pccs-admin RHEL 9 2.26-7.el9
  • sgx-pckid-tool RHEL 9 2.26-7.el9

red hat advisories RHSA-2026:33371RHSA-2026:18868RHSA-2026:18480

  • pnpm openSUSE Tumbleweed 10.32.1-1.1

opensuse advisories openSUSE-SU-2026:10410-1

  • sgx-mpa AlmaLinux 10 2.26-7.el10
  • tdx-qgs AlmaLinux 10 2.26-7.el10
  • sgx-libs AlmaLinux 10 2.26-7.el10
  • sgx-pccs AlmaLinux 10 2.26-7.el10
  • sgx-common AlmaLinux 10 2.26-7.el10
  • sgx-pccs-admin AlmaLinux 10 2.26-7.el10
  • sgx-pckid-tool AlmaLinux 10 2.26-7.el10
  • sgx-mpa AlmaLinux 9 2.26-7.el9

almalinux advisories ALSA-2026:18480ALSA-2026:18868

  • linux-sgx Rocky Linux 10 2.26-7.el10
  • linux-sgx Rocky Linux 9 2.26-7.el9

rocky linux advisories RLSA-2026:18480RLSA-2026:18868

  • pnpm Alpine 3.23 10.33.4-r0

alpine advisories ALPINE-CVE-2026-24842

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-24842 updated cvss 8.2

node-tar: tar: node-tar: Arbitrary file creation via path traversal bypass in hardlink security check

  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/kibana6-rhel8, openshift-logging/elasticsearch6-rhel9, openshift-logging/logging-curator5-rhel9, openshift-logging/elasticsearch-proxy-rhel9, openshift-logging/elasticsearch-rhel9-operator, openshift-logging/elasticsearch-operator-bundle Red Hat 3scale API Management Platform 2 3scale-amp20/system, 3scale-amp21/system, 3scale-amp22/system, 3scale-amp24/system, 3scale-amp25/system, 3scale-amp26/system, +3 more Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9 Red Hat Fuse 7 io.hawt-project, io.apicurio-apicurito, io.hawt-hawtio-online, io.syndesis-syndesis-parent
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8, openshift4/ose-console-rhel9
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat Openshift Data Foundation 4 odf4/mcg-core-rhel9, odf4/odf-console-rhel9, odf4/ocs-client-console-rhel9
    affected: workaround, no fix available
  • Red Hat Network Observability (NETOBSERV) 1.11.0 network-observability 1771227610, network-observability 1771227650
    fixed: vendor fix RHSA-2026:2900
  • Red Hat Enterprise Linux AppStream (v. 9) sgx-mpa 2.26-7.el9, tdx-qgs 2.26-7.el9, sgx-libs 2.26-7.el9, sgx-pccs 2.26-7.el9, linux-sgx 2.26-7.el9, sgx-common 2.26-7.el9, +2 more
    fixed: vendor fix RHSA-2026:18868
  • Red Hat Enterprise Linux AppStream (v. 10) sgx-mpa 2.26-7.el10, tdx-qgs 2.26-7.el10, sgx-libs 2.26-7.el10, sgx-pccs 2.26-7.el10, linux-sgx 2.26-7.el10, sgx-common 2.26-7.el10, +2 more
    fixed: vendor fix RHSA-2026:18480
  • Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 Server eap7-wildfly 7.3.18-3.GA_redhat_00001.1.el7eap, eap7-wildfly-modules 7.3.18-3.GA_redhat_00001.1.el7eap, eap7-wildfly-javadocs 7.3.18-3.GA_redhat_00001.1.el7eap, eap7-wildfly-java-jdk8 7.3.18-3.GA_redhat_00001.1.el7eap, eap7-wildfly-java-jdk11 7.3.18-3.GA_redhat_00001.1.el7eap
    fixed: vendor fix RHSA-2026:33371
  • Red Hat OpenShift Dev Spaces 3.27 devspaces 1774448966, devspaces 1774476526
    fixed: vendor fix RHSA-2026:6192
show 15 more
  • Red Hat Trusted Artifact Signer 1.3 rhtas 1773308315
    fixed: vendor fix RHSA-2026:5447
  • Red Hat Cryostat 4 io.cryostat-cryostat Red Hat Multicluster Engine for Kubernetes multicluster-engine/console-mce-rhel8, multicluster-engine/console-mce-rhel9
    not affected: component not present
  • Red Hat Network Observability (NETOBSERV) 1.11.0 network-observability 1771226060, network-observability 1771226629, network-observability 1771229282, network-observability 1771230433, network-observability 1771231259
    not affected: vulnerable code not present
  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/console-rhel9, rhacm2/volsync-rhel9, rhacm2/volsync-operator-bundle Red Hat AMQ Broker 7 org.jolokia-jolokia-parent
    not affected: component not present
  • Red Hat build of Apache Camel - HawtIO 4 io.hawt-project
    not affected: vulnerable code not in execute path
  • Red Hat Enterprise Linux 6 tar Red Hat Enterprise Linux 7 tar
    not affected: component not present
  • Red Hat Enterprise Linux 8 npm, tar, nodejs, grafana, mozjs60, nodejs-libs, +17 more Red Hat Enterprise Linux 9 gjs, npm, tar, nodejs, polkit, grafana, +4 more
    not affected: vulnerable code not in execute path
  • Red Hat Enterprise Linux 10 tar, nodejs22, nodejs24 Red Hat Hardened Images tar
    not affected: component not present
  • Red Hat JBoss Enterprise Application Platform 7 io.hawt-project, org.jboss.hal-hal-parent Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 Server eap7-undertow 2.0.41-8.SP9_redhat_00001.1.el7eap, eap7-apache-cxf 3.4.10-4.SP2_redhat_00004.1.el7eap, eap7-apache-cxf-rt 3.4.10-4.SP2_redhat_00004.1.el7eap, eap7-apache-cxf-tools 3.4.10-4.SP2_redhat_00004.1.el7eap, eap7-apache-cxf-services 3.4.10-4.SP2_redhat_00004.1.el7eap, eap7-jboss-server-migration 1.7.2-23.Final_redhat_00025.1.el7eap, +21 more Red Hat JBoss Enterprise Application Platform 8 io.hawt-project, org.keycloak-keycloak-parent Red Hat JBoss Enterprise Application Platform Expansion Pack io.hawt-project, org.keycloak-keycloak-parent
    not affected: vulnerable code not present
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-notebook-controller-rhel8, rhoai/odh-kf-notebook-controller-rhel8, rhoai/odh-data-science-pipelines-argo-argoexec-rhel8, rhoai/odh-data-science-pipelines-argo-workflowcontroller-rhel8
    not affected: component not present
  • Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-9 Red Hat Openshift Data Foundation 4 odf4/odf-multicluster-console-rhel9
    not affected: vulnerable code not present
  • Red Hat OpenShift Dev Spaces devspaces/code-sshd-rhel9, devspaces/machineexec-rhel9
    not affected: vulnerable code not in execute path
  • Red Hat OpenShift Dev Spaces 3.27 devspaces 1773775028, devspaces 1773775064, devspaces 1773775544, devspaces 1774070844, devspaces 1774143680, devspaces 1774155063, +8 more
    not affected: vulnerable code not present
  • Red Hat Process Automation 7 org.uberfire-uberfire-parent, org.kie.workbench-kie-wb-common Red Hat Single Sign-On 7 org.keycloak-keycloak-parent
    not affected: component not present
  • Red Hat Trusted Artifact Signer 1.3 rhtas 1773231678, rhtas 1773307592, rhtas 1773307620, rhtas 1773307677, rhtas 1773307765, rhtas 1773308392
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/isaacs/node-tar/security/advisories/GHSA-34x7-hfp2-rc4v referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
CISA ADP 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
GitHub 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Affected packages

ecosystem package affected fixed in
npm tar
<7.5.7
7.5.7

Affected products

  • isaacs node-tar
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7
  • Red Hat Network Observability (NETOBSERV) 1.11.0
  • Red Hat Red Hat OpenShift Dev Spaces 3.27
  • Red Hat Red Hat Trusted Artifact Signer 1.3
  • Red Hat Cryostat 4
  • Red Hat Logging Subsystem for Red Hat OpenShift
  • Red Hat Multicluster Engine for Kubernetes
  • Red Hat Red Hat 3scale API Management Platform 2
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
  • Red Hat Red Hat AMQ Broker 7
  • Red Hat Red Hat build of Apache Camel - HawtIO 4
  • Red Hat Red Hat Developer Hub
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Fuse 7
  • Red Hat Red Hat Hardened Images
  • Red Hat Red Hat JBoss Enterprise Application Platform 7
  • Red Hat Red Hat JBoss Enterprise Application Platform 8
  • Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat Red Hat OpenShift AI (RHOAI)
  • Red Hat Red Hat OpenShift Container Platform 4
  • Red Hat Red Hat Openshift Data Foundation 4
  • Red Hat Red Hat OpenShift Dev Spaces
  • Red Hat Red Hat Process Automation 7
  • Red Hat Red Hat Single Sign-On 7

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.