High 8.2Published Jan 16, 2026

CVE-2026-23745node-tar Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization

Updated under an hour ago (Oct 26, 2026, 8:23 PM ET)

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It affects isaacs node-tar and 34 other products. Add what you run to find out whether that includes you.

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Every CVE for isaacs node-tar

Exploited in the last 30 days

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.

CVSS: 8.2 HIGH (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Sep 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

isaacs node-tar isaacs:node_tar (from the name)	before 7.5.3	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 0:2.26-7.el10 not affected	CISA ADP
Red Hat Network Observability (NETOBSERV) 1.11.0 redhat:network_observ_optr	from 1771227650 not affected	CISA ADP
Red Hat Red Hat Migration Toolkit 1.8 redhat:rhmt	from 1783690532 not affected	CISA ADP
Red Hat Red Hat OpenShift AI 2.25 redhat:openshift_ai	from 1772093424 not affected	CISA ADP
Red Hat Red Hat OpenShift Dev Spaces 3.27 redhat:openshift_devspaces	from 1774451954 not affected	CISA ADP
Red Hat Red Hat Trusted Artifact Signer 1.2 redhat:trusted_artifact_signer	from 1770739056 not affected	CISA ADP
Red Hat Confidential Compute Attestation redhat:confidential_compute_attestation	1	CISA ADP
Red Hat Cryostat 4 redhat:cryostat	4	CISA ADP
Red Hat Logging Subsystem for Red Hat OpenShift redhat:logging	5	CISA ADP
1–10 of 35

References

References

https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97	x-refsource-confirm, exploit, patch, vendor-advisory
https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e	x-refsource-misc, patch
https://access.redhat.com/errata/RHSA-2026:18480
https://access.redhat.com/errata/RHSA-2026:18868
https://access.redhat.com/errata/RHSA-2026:19712
https://access.redhat.com/errata/RHSA-2026:2144
https://access.redhat.com/errata/RHSA-2026:2900
https://access.redhat.com/errata/RHSA-2026:2926
https://access.redhat.com/errata/RHSA-2026:3782
https://access.redhat.com/errata/RHSA-2026:41928
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.