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Fencer Intel
medium 5.3

CVE-2026-59871 json

node-tar: Process crash via PAX numeric path type confusion

published 4mo ago modified 17d ago also EUVD-2026-42308 , GHSA-w8wr-v893-vjvp

cvss
5.3
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 51%
public exploits
0
none known

Summary

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, node-tar coerces all-digit PAX path and linkpath values in src/pax.ts to JavaScript numbers, causing downstream path handling such as normalizeWindowsPath(entry.path).split('/') to throw an uncaught TypeError. This issue is fixed in version 7.5.18.

Patch / fix

  • npm tar 7.5.18
  • isaacs tar 7.5.18
  • node-tar Debian 14 7.5.19+~4.0.1-1

debian advisories DEBIAN-CVE-2026-59871

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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-2026-59871 updated cvss 5.3

node-tar: node-tar: Denial of Service due to incorrect PAX path handling

  • Red Hat Confidential Compute Attestation openshift-sandboxed-containers/osc-pccs Red Hat Cryostat 4 tar, grafana-infinity-datasource-npm, cryostat-openshift-console-plugin-npm Red Hat Exploit Intelligence exploit-intelligence-tech-preview/vulnerability-analysis-rhel9 Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-ui-rhel8 Red Hat Node HealthCheck Operator workload-availability/node-healthcheck-rhel9-operator, workload-availability/node-healthcheck-operator-bundle, workload-availability/node-healthcheck-must-gather-rhel9 Red Hat OpenShift Pipelines openshift-pipelines/pipelines-console-plugin-rhel8, openshift-pipelines/pipelines-console-plugin-rhel9, openshift-pipelines/pipelines-console-plugin-pf5-rhel9
    +26 more products
    Red Hat OpenShift Service Mesh 3 openshift-service-mesh/kiali-rhel9, openshift-service-mesh/kiali-ossmc-rhel9 Red Hat 3scale API Management Platform 2 3scale-amp21/system, 3scale-amp22/system, 3scale-amp2/system-rhel7, 3scale-amp2/system-rhel8, 3scale-amp2/system-rhel9 Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/volsync-rhel9, rhacm2/volsync-operator-bundle Red Hat AMQ Broker 7 tar Red Hat build of Apache Camel - HawtIO 4 tar Red Hat build of Apache Camel for Spring Boot 4 tar Red Hat Build of Podman Desktop rh-podman-desktop.git Red Hat Connectivity Link 1 rhcl-1/rhcl-console-plugin-rhel9 Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9 Red Hat Enterprise Linux 6 tar Red Hat Enterprise Linux 7 tar Red Hat Enterprise Linux 8 npm, nodejs, grafana, mozjs60, grafana-pcp, nodejs-libs, +23 more Red Hat Enterprise Linux 9 gjs, npm, tar, nodejs, sgx-mpa, tdx-qgs, +13 more Red Hat Enterprise Linux 10 tar, nodejs22, nodejs24, linux-sgx, ubi10/s2i-base, ubi10/nodejs-22, +3 more Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-rocm-rhel9, rhelai3/bootc-gaudi-rhel9, rhelai3/disk-image-cuda-rhel9 Red Hat JBoss Enterprise Application Platform 7 tar Red Hat JBoss Enterprise Application Platform Expansion Pack tar Red Hat OpenShift AI (RHOAI) rhoai/odh-mlflow-rhel9, rhoai/odh-dashboard-rhel9, rhoai/odh-mod-arch-maas-rhel9, rhoai/odh-mod-arch-automl-rhel9, rhoai/odh-mod-arch-gen-ai-rhel9, rhoai/odh-mod-arch-mlflow-rhel9, +4 more Red Hat OpenShift Container Platform 4 openshift4/ose-console, openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9, openshift4/ose-console-rhel9, openshift4/ose-agent-installer-ui-rhel9 Red Hat OpenShift Container Platform 5 openshift/ose-rhel-coreos-9, openshift5/ose-console-rhel9, openshift5/ose-agent-installer-ui-rhel9 Red Hat Openshift Data Foundation 4 odf4/mcg-core-rhel9, odf4/odf-console-rhel9, odf4/ocs-client-console-rhel9, odf4/odf-multicluster-console-rhel9 Red Hat OpenShift Dev Spaces devspaces/udi-rhel9, devspaces/code-rhel9, devspaces/openvsx-rhel9, devspaces/dashboard-rhel9 Red Hat Satellite 6 satellite/iop-remediations-rhel9 Red Hat Single Sign-On 7 tar Red Hat Trusted Artifact Signer rhtas/rekor-search-ui-rhel9 Red Hat Self-service automation portal 2 ansible-automation-platform/automation-portal, ansible-automation-platform/bootc-automation-portal-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Hardened Images yarnpkg
    not affected: component 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
yes
Technical impact
partial
Assessed
4mo ago

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/isaacs/node-tar/security/advisories/GHSA-w8wr-v893-vjvp referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
npm tar
<7.5.18
7.5.18

Affected products

  • isaacs node-tar

Classification

Weakness
  • CWE-704 Incorrect Type Conversion or Cast

References

Sources

Fencer Intel 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.

The maintainers of isaacs/node-tar published their own advisory on GitHub. Reviewed sources take precedence over it.