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Fencer Vulns
high 8.7

CVE-2025-59343 json

tar-fs has a symlink validation bypass if destination directory is predictable with a specific tarball

published 2025-09-24 13 mo ago modified 2026-09-10 1 mo ago also EUVD-2025-31022 , GHSA-vj76-c3g6-qr5v

cvss
8.7
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are vulnerable to symlink validation bypass if the destination directory is predictable with a specific tarball. This issue has been patched in version 3.1.1, 2.1.4, and 1.16.6. A workaround involves using the ignore option on non files/directories.

Patch / fix

  • npm tar-fs 1.16.6, 2.1.4, 3.1.1
  • tar-fs_project tar-fs 1.16.5, 2.1.3, 3.1.1
  • node-tar-fs Debian 12 2.1.3-0+deb12u2
  • node-tar-fs Debian 13 3.0.9+~cs2.0.4-1+deb13u1
  • node-tar-fs Debian 14 3.0.9+~cs2.0.4-2

debian advisories DEBIAN-CVE-2025-59343

  • node-tar-fs Ubuntu 25.10 3.0.9+~cs2.0.4-1+deb13u1build0.25.10.1
  • node-tar-fs Ubuntu Pro 22.04 LTS 2.1.1-6ubuntu0.22.04.1~esm1
  • node-tar-fs Ubuntu Pro 24.04 LTS 2.1.1-6ubuntu0.24.04.1~esm1

ubuntu advisories UBUNTU-CVE-2025-59343

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python3.11-django ansible automation platform developer 2.6, ansible automation platform developer 2.5, ansible automation platform 2.6 +1 more 4.2.25-1.el9ap
  • automation-platform-ui ansible automation platform 2.6 2.6.2-1.el9ap
  • automation-eda-controller ansible automation platform 2.6 1.2.1-1.el9ap
  • automation-eda-controller-base ansible automation platform 2.6 1.2.1-1.el9ap
  • automation-eda-controller-base-services ansible automation platform 2.6 1.2.1-1.el9ap
  • automation-eda-controller-worker-services ansible automation platform 2.6 1.2.1-1.el9ap
  • automation-eda-controller-event-stream-services ansible automation platform 2.6 1.2.1-1.el9ap
  • python3.11-django ansible automation platform developer 2.5, ansible automation platform 2.5 4.2.25-1.el8ap

red hat advisories RHSA-2025:19201RHSA-2025:18979

  • tree-sitter-ruby openSUSE Leap 16.0 0.23.1-160000.3.1
  • tree-sitter-ruby openSUSE Tumbleweed 0.23.1-2.1

opensuse advisories openSUSE-SU-2026:20998-1openSUSE-SU-2025:15582-1

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-2025-59343 updated cvss 7.5

tar-fs: tar-fs symlink validation bypass

  • Red Hat Cryostat 4 cryostat-openshift-console-plugin-rhel9 Red Hat Node HealthCheck Operator workload-availability/node-remediation-console-rhel9 Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-ui-rhel8, openshift-pipelines/pipelines-hub-api-rhel8, openshift-pipelines/pipelines-hub-db-migration-rhel8 Red Hat Ceph Storage 6 pybind Red Hat Ceph Storage 7 pybind Red Hat Ceph Storage 8 pybind
    +1 more products
    Red Hat Ceph Storage 9 pybind
    affected: workaround, no fix available
  • Red Hat Fuse 7 io.syndesis-syndesis-parent Red Hat OpenShift Container Platform 4 openshift4/ose-console-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift Dev Spaces openshift4/devspaces-code-rhel9, devspaces-tech-preview/idea-rhel9, openshift4/devspaces-pluginregistry-rhel9
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat Cryostat 4 on RHEL 9 cryostat/cryostat-rhel9 4.0.3-2, cryostat/cryostat-db-rhel9 4.0.3-2, cryostat/jfr-datasource-rhel9 4.0.3-2, cryostat/cryostat-reports-rhel9 4.0.3-2, cryostat/cryostat-storage-rhel9 4.0.3-2, cryostat/cryostat-rhel9-operator 4.0.3-2, +5 more
    fixed: vendor fix RHSA-2025:17376
  • Red Hat Multicluster Global Hub 1.6.6 multicluster-globalhub 1773650060
    fixed: vendor fix RHSA-2026:6226
  • Red Hat Ansible Automation Platform 2.5 for RHEL 8 automation-gateway 2.5.20251022-1.el8ap, automation-gateway-config 2.5.20251022-1.el8ap, automation-gateway-server 2.5.20251022-1.el8ap Red Hat Ansible Automation Platform 2.5 for RHEL 9 automation-gateway 2.5.20251022-1.el9ap, automation-gateway-config 2.5.20251022-1.el9ap, automation-gateway-server 2.5.20251022-1.el9ap
    fixed: vendor fix RHSA-2025:18979
  • Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26
    fixed: vendor fix RHSA-2025:19221
  • Red Hat Ansible Automation Platform 2.6 for RHEL 9 automation-platform-ui 2.6.2-1.el9ap
    fixed: vendor fix RHSA-2025:19201
show 8 more
  • Red Hat Ceph Storage 7.1 rhceph/rhceph-7-rhel9 1781863705
    fixed: vendor fix RHSA-2026:33154
  • Red Hat Ceph Storage 9.0 rhceph/rhceph-9-rhel9 1781160401
    fixed: vendor fix RHSA-2026:26411
  • Red Hat Ceph Storage 9.2 rhceph/rhceph-9-rhel10 1790843527
    fixed: vendor fix RHSA-2026:86618
  • Red Hat Developer Hub 1.7 rhdh 1.7.2-1761774405
    fixed: vendor fix RHSA-2025:19529
  • Red Hat OpenShift Dev Spaces (RHOSDS) 3.24 devspaces 3.24-1760676569, devspaces 3.24-1760747489, devspaces 3.24-1761088569
    fixed: vendor fix RHSA-2025:19094
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/vector-rhel9, openshift-logging/kibana6-rhel8, openshift-logging/eventrouter-rhel9, openshift-logging/cluster-logging-rhel9-operator, openshift-logging/log-file-metric-exporter-rhel9, openshift-logging/cluster-logging-operator-bundle Red Hat Multicluster Engine for Kubernetes multicluster-engine/console-mce-rhel9 Red Hat Multicluster Global Hub 1.6.6 multicluster-globalhub 1773649712, multicluster-globalhub 1774245716, multicluster-globalhub 1774245790, multicluster-globalhub 1774362315, multicluster-globalhub 1774364330 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 Serverless openshift-serverless-1/kn-backstage-plugins-eventmesh-rhel8 Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/console-rhel9
    +8 more products
    Red Hat Ansible Automation Platform 2.5 for RHEL 8 receptor 1.6.0-2.1.el8ap, receptorctl 1.6.0-2.1.el8ap, automation-hub 4.10.9-1.el8ap, python3.11-django 4.2.25-1.el8ap, python3.11-galaxy-ng 4.10.9-1.el8ap, automation-controller 4.6.21-1.el8ap, +19 more Red Hat Ansible Automation Platform 2.5 for RHEL 9 receptor 1.6.0-2.1.el9ap, receptorctl 1.6.0-2.1.el9ap, automation-hub 4.10.9-1.el9ap, python3.11-django 4.2.25-1.el9ap, python3.11-galaxy-ng 4.10.9-1.el9ap, automation-controller 4.6.21-1.el9ap, +19 more Red Hat Ansible Automation Platform 2.6 ansible-automation-platform, ansible-automation-platform-26 Red Hat Ansible Automation Platform 2.6 for RHEL 9 receptor 1.6.0-2.1.el9ap, receptorctl 1.6.0-2.1.el9ap, ansible-builder 3.1.0-2.el9ap, automation-hub 4.11.2-1.el9ap, python3.11-daemon 3.1.2-1.el9ap, ansible-navigator 25.8.0-2.el9ap, +32 more Red Hat Ceph Storage 7.1 rhceph/grafana-rhel9 1781855851, rhceph/keepalived-rhel9 1781855108, rhceph/snmp-notifier-rhel9 1781854814, rhceph/rhceph-haproxy-rhel9 1781856344, rhceph/rhceph-promtail-rhel9 1781856148 Red Hat Ceph Storage 9.0 rhceph/alloy-rhel10 1781021746, rhceph/grafana-rhel10 1781018768, rhceph/keepalived-rhel10 1781018336, rhceph/oauth2-proxy-rhel9 1781018431, rhceph/rhceph-haproxy-rhel9 1781021473, rhceph/snmp-notifier-rhel10 1781017635 Red Hat Ceph Storage 9.2 rhceph/alloy-rhel10 1790774976, rhceph/grafana-rhel10 1790774121, rhceph/keepalived-rhel10 1790842990, rhceph/oauth2-proxy-rhel10 1790774021, rhceph/snmp-notifier-rhel10 1790773439, rhceph/rhceph-haproxy-rhel10 1790846345 Red Hat Developer Hub 1.7 rhdh 1.7.2-1761865699, rhdh 1.7.2-1761872012
    not affected: vulnerable code not present
  • Red Hat JBoss Enterprise Application Platform 8 org.keycloak-keycloak-parent Red Hat JBoss Enterprise Application Platform Expansion Pack org.keycloak-keycloak-parent
    not affected: component not present
  • Red Hat Openshift Data Foundation 4 odf4/mcg-core-rhel9 Red Hat OpenShift Dev Spaces devspaces/code-rhel8, openshift4/devspaces-pluginregistry-rhel8 Red Hat OpenShift Dev Spaces (RHOSDS) 3.24 devspaces 3.24-1759870356, devspaces 3.24-1759871071, devspaces 3.24-1759871505, devspaces 3.24-1759871621, devspaces 3.24-1759871872, devspaces 3.24-1760653610, +7 more
    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
none
Automatable
no
Technical impact
partial
Assessed
13 mo ago

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

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:H/VA:N/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:H/VA:N/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

Affected packages

ecosystem package affected fixed in
npm tar-fs
>=3.0.0, <3.1.1
>=2.0.0, <2.1.4
<1.16.6
3.1.1
2.1.4
1.16.6

Affected products

  • mafintosh tar-fs

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory
  • CWE-61 UNIX Symbolic Link (Symlink) Following

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.