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Fencer Vulns
high 7.5

CVE-2026-59874 json

node-tar: Negative tar entry size causes infinite loop in archive replace

published 2026-07-08 4 mo ago modified 2026-10-25 14 d ago also GHSA-8x88-c5mf-7j5w , EUVD-2026-42306

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to make no progress while repeatedly parsing the same header. 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-2026-59874

  • rh-podman-desktop RHEL 10.2 1.1.2-1.el10_2
  • npm RHEL 9 1:11.16.0-1.24.18.0.3.module+el9.8.0+24537+83ec84e1
  • nodejs RHEL 9 1:24.18.0-3.module+el9.8.0+24537+83ec84e1
  • nodejs-libs RHEL 9 1:24.18.0-3.module+el9.8.0+24537+83ec84e1
  • nodejs-nodemon RHEL 9 3.1.14-2.module+el9.8.0+24539+0ea88729
  • nodejs-full-i18n RHEL 9 1:24.18.0-3.module+el9.8.0+24537+83ec84e1
  • nodejs-packaging RHEL 9 2021.06-6.module+el9.8.0+24355+35d95b59
  • nodejs-packaging-bundler RHEL 9 2021.06-6.module+el9.8.0+24355+35d95b59

red hat advisories RHSA-2026:57590RHSA-2026:53298RHSA-2026:52399RHSA-2026:47057RHSA-2026:47058RHSA-2026:48034

  • nodejs AlmaLinux 10 1:22.23.1-4.el10_2
  • nodejs-npm AlmaLinux 10 1:10.9.8-1.22.23.1.4.el10_2
  • nodejs-libs AlmaLinux 10 1:22.23.1-4.el10_2
  • nodejs-full-i18n AlmaLinux 10 1:22.23.1-4.el10_2
  • nodejs24 AlmaLinux 10 1:24.18.0-3.el10_2
  • nodejs24-npm AlmaLinux 10 1:11.16.0-1.24.18.0.3.el10_2
  • nodejs24-libs AlmaLinux 10 1:24.18.0-3.el10_2
  • nodejs24-full-i18n AlmaLinux 10 1:24.18.0-3.el10_2

almalinux advisories ALSA-2026:48033ALSA-2026:48034ALSA-2026:47057ALSA-2026:47058ALSA-2026:47059ALSA-2026:47060

  • nodejs Rocky Linux 9 1:24.18.0-3.module+el9.8.0+40264+d9b257bb
  • nodejs-nodemon Rocky Linux 9 3.1.14-2.module+el9.8.0+40264+d9b257bb
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.7.0+40052+e32ea525
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.7.0+40153+4d595597
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.7.0+40165+d075e3f2
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.8.0+40164+8921ab53
  • nodejs Rocky Linux 9 1:22.23.1-2.module+el9.8.0+40263+faa47049
  • nodejs-nodemon Rocky Linux 9 3.1.14-1.module+el9.8.0+40263+faa47049

rocky linux advisories RLSA-2026:47057RLSA-2026:47058RLSA-2026:48033RLSA-2026:48034RLSA-2026:47059RLSA-2026:47060

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-2026-59874 updated cvss 7.5

tar: Node-tar: Denial of Service via malformed tar archive header

  • Red Hat Confidential Compute Attestation openshift-sandboxed-containers/osc-pccs
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Exploit Intelligence exploit-intelligence-tech-preview/vulnerability-analysis-rhel9 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 Red Hat build of Apache Camel - HawtIO 4 tar Red Hat Build of Podman Desktop rh-podman-desktop.git Red Hat Connectivity Link 1 rhcl-1/rhcl-console-plugin-rhel9
    +2 more products
    Red Hat Enterprise Linux 9 sgx-mpa, tdx-qgs, sgx-libs, sgx-pccs, linux-sgx, sgx-common, +2 more Red Hat Enterprise Linux 10 linux-sgx
    affected: workaround, no fix available
  • 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
    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, odf4/odf-multicluster-console-rhel9
    affected: workaround, no fix available
  • Red Hat Single Sign-On 7 tar
    affected: workaround, no fix planned “Will not fix”
  • Red Hat AMQ Broker 7.13.6
    fixed: vendor fix RHSA-2026:66545
  • Red Hat AMQ Broker 7.14.1
    fixed: vendor fix RHSA-2026:66488
  • Red Hat Ansible Automation Platform 2.2 ansible-automation-platform/automation-portal 1784622951
    fixed: vendor fix RHSA-2026:42815
show 24 more
  • Red Hat Enterprise Linux AppStream (v. 8) nodejs 22.23.1-2.module+el8.10.0+24556+e9352af2, nodejs 24.18.0-2.module+el8.10.0+24562+090c6525, nodejs-libs 22.23.1-2.module+el8.10.0+24556+e9352af2, nodejs-libs 24.18.0-2.module+el8.10.0+24562+090c6525, npm 10.9.8-1.22.23.1.2.module+el8.10.0+24556+e9352af2, nodejs-nodemon 3.1.14-1.module+el8.10.0+24556+e9352af2, +8 more
    fixed: vendor fix RHSA-2026:47059
  • Red Hat Enterprise Linux AppStream (v. 9) nodejs 22.23.1-2.module+el9.8.0+24538+3f176d52, nodejs 24.18.0-3.module+el9.8.0+24537+83ec84e1, nodejs-libs 22.23.1-2.module+el9.8.0+24538+3f176d52, nodejs-libs 24.18.0-3.module+el9.8.0+24537+83ec84e1, npm 10.9.8-1.22.23.1.2.module+el9.8.0+24538+3f176d52, nodejs-nodemon 3.1.14-1.module+el9.8.0+24540+c30b2ffe, +8 more
    fixed: vendor fix RHSA-2026:47058
  • Red Hat Enterprise Linux AppStream (v. 10) nodejs 22.23.1-4.el10_2, nodejs22 22.23.1-4.el10_2, nodejs24 24.18.0-3.el10_2, nodejs-libs 22.23.1-4.el10_2, nodejs24-libs 24.18.0-3.el10_2, nodejs-full-i18n 22.23.1-4.el10_2, +3 more
    fixed: vendor fix RHSA-2026:48033
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) nodejs 22.23.1-3.el10_0, nodejs22 22.23.1-3.el10_0, nodejs-libs 22.23.1-3.el10_0, nodejs-full-i18n 22.23.1-3.el10_0, nodejs-npm 10.9.8-1.22.23.1.3.el10_0
    fixed: vendor fix RHSA-2026:53298
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) nodejs 22.23.1-2.module+el9.6.0+24604+449f851b, nodejs-libs 22.23.1-2.module+el9.6.0+24604+449f851b, npm 10.9.8-1.22.23.1.2.module+el9.6.0+24604+449f851b, nodejs-nodemon 3.1.14-1.module+el9.6.0+24604+449f851b, nodejs-full-i18n 22.23.1-2.module+el9.6.0+24604+449f851b, nodejs-packaging 2021.06-4.module+el9.6.0+23473+45664c2d, +1 more
    fixed: vendor fix RHSA-2026:52399
  • Red Hat Enterprise Linux Extensions Channel (v. 10) rh-podman-desktop 1.1.2-1.el10_2
    fixed: vendor fix RHSA-2026:57590
  • Red Hat Migration Toolkit 1.8 rhmtc/openshift-migration-ui-rhel8 1789546373
    fixed: vendor fix RHSA-2026:68681
  • Red Hat OpenShift AI 2.25 rhoai/odh-dashboard-rhel9 1788312226, rhoai/odh-mod-arch-model-registry-rhel9 1788312157, rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9 1787801527
    fixed: vendor fix RHSA-2026:65126
  • Red Hat OpenShift AI 3.3 rhoai/odh-mlflow-rhel9 1789653606, rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9 1790013905
    fixed: vendor fix RHSA-2026:73987
  • Red Hat OpenShift AI 3.4 rhoai/odh-dashboard-rhel9 1787347991, rhoai/odh-mod-arch-maas-rhel9 1787251250, rhoai/odh-mod-arch-automl-rhel9 1787250508, rhoai/odh-mod-arch-gen-ai-rhel9 1786611759, rhoai/odh-mod-arch-mlflow-rhel9 1786612219, rhoai/odh-mod-arch-autorag-rhel9 1787251550, +3 more
    fixed: vendor fix RHSA-2026:60520
  • Red Hat OpenShift Dev Spaces 3.29 devspaces/dashboard-rhel9 1784737150
    fixed: vendor fix RHSA-2026:48124
  • Red Hat OpenShift Dev Spaces 3.30 devspaces/code-rhel9 1787762793, devspaces/openvsx-rhel9 1787759145
    fixed: vendor fix RHSA-2026:62260
  • Red Hat OpenShift Service Mesh 3.0 openshift-service-mesh/kiali-rhel9 1784806446, openshift-service-mesh/kiali-ossmc-rhel9 1784806351
    fixed: vendor fix RHSA-2026:49687
  • Red Hat OpenShift Service Mesh 3.1 openshift-service-mesh/kiali-rhel9 1784813917, openshift-service-mesh/kiali-ossmc-rhel9 1784813334
    fixed: vendor fix RHSA-2026:49689
  • Red Hat OpenShift Service Mesh 3.2 openshift-service-mesh/kiali-rhel9 1784795457, openshift-service-mesh/kiali-ossmc-rhel9 1784805014
    fixed: vendor fix RHSA-2026:49681
  • Red Hat OpenShift Service Mesh 3.3 openshift-service-mesh/kiali-rhel9 1784806326, openshift-service-mesh/kiali-ossmc-rhel9 1784824388
    fixed: vendor fix RHSA-2026:49680
  • Red Hat Satellite 6.18 satellite/iop-remediations-rhel9 1788230538
    fixed: vendor fix RHSA-2026:63371
  • Red Hat Satellite 6.19 satellite/iop-remediations-rhel9 1786008041
    fixed: vendor fix RHSA-2026:51200
  • Red Hat Trusted Artifact Signer 1.4 rhtas/rekor-search-ui-rhel9 1791534339
    fixed: vendor fix RHSA-2026:83598
  • Red Hat Cryostat 4 tar, grafana-infinity-datasource-npm, cryostat-openshift-console-plugin-npm 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
    not affected: component not present
  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/volsync-rhel9, rhacm2/volsync-operator-bundle
    not affected: vulnerable code not present
  • Red Hat build of Apache Camel for Spring Boot 4 tar
    not affected: component not present
  • Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9
    not affected: vulnerable code not in execute path
  • Red Hat Enterprise Linux 6 tar
    not affected: vulnerable code not present

18 more not affected in the full advisory

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
4 mo ago

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5w referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 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-835 Loop with Unreachable Exit Condition

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.