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MEDIUM

CVE-2026-23745

CVSS v3

6.1

MEDIUM

EPSS Score

0.4 %

exploit probability, as of 2026-10-17

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • tarnpmall versions · fixed in 7.5.3
  • sgx-pccsAlmaLinux:10all versions · fixed in 2.26-7.el10and 6 other packages
  • sgx-pccsAlmaLinux:9all versions · fixed in 2.26-7.el9and 6 other packages

Vendor advisories

  • CVE-2026-23745 Red Hat Product Security53 products fixed · 24 known affected

    node-tar: tar: node-tar: Arbitrary file overwrite and symlink poisoning via unsanitized linkpaths in archives

    openshift-sandboxed-containers/osc-pccs as a component of Confidential Compute Attestation · openshift-logging/kibana6-rhel8 as a component of Logging Subsystem for Red Hat OpenShift · openshift-lightspeed/lightspeed-to-dataverse-exporter-rhel9 as a component of OpenShift Lightspeed

  • RHSA-2026:41928 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Migration Toolkit for Containers

  • RHSA-2026:19712 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: RHOAI 3.3.3 - Red Hat OpenShift AI

  • RHSA-2026:18868 Red Hat Product Security17 products fixed

    Red Hat Security Advisory: linux-sgx security update

  • RHSA-2026:18480 Red Hat Product Security17 products fixed

    Red Hat Security Advisory: linux-sgx security update

  • RHSA-2026:6192 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.27.0 Release.

4 more advisories

Full record on NVD

Description

node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Published
2026-01-16
Last Modified
2026-02-18

Frequently asked questions

What is CVE-2026-23745?

node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.

Is CVE-2026-23745 actively exploited?

Active exploitation of CVE-2026-23745 has not been confirmed. Its EPSS score was 0.4% on 2026-10-17, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-23745?

CVE-2026-23745 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N.

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