8.2High

CVE-2026-29786node-tar: Hardlink Path Traversal via Drive-Relative Linkpath

isaacs node-tar; Red Hat Cryostat 4; Red Hat Logging Subsystem for Red Hat OpenShift; Red Hat Network Observability Operator Published: 2026-03-07 18:32 (8 months ago)

Description

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as C:../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This issue has been patched in version 7.5.10.

Weakness (CWE): CWE-22 CWE-59

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
isaacs	node-tar	< 7.5.10
isaacs	tar	< 7.5.10
Red Hat	Cryostat 4	—
Red Hat	Logging Subsystem for Red Hat OpenShift	—
Red Hat	Network Observability Operator	—
Red Hat	Red Hat 3scale API Management Platform 2	—
Red Hat	Red Hat Advanced Cluster Management for Kubernetes 2	—
Red Hat	Red Hat AMQ Broker 7	—
Red Hat	Red Hat build of Apache Camel - HawtIO 4	—
Red Hat	Red Hat Enterprise Linux 10	—
Red Hat	Red Hat Enterprise Linux 8	—
Red Hat	Red Hat Enterprise Linux 9	—
Red Hat	Red Hat Fuse 7	—
Red Hat	Red Hat JBoss Enterprise Application Platform 7	—
Red Hat	Red Hat JBoss Enterprise Application Platform 8	—
Red Hat	Red Hat JBoss Enterprise Application Platform Expansion Pack	—
Red Hat	Red Hat OpenShift AI (RHOAI)	—
Red Hat	Red Hat OpenShift Container Platform 4	—
Red Hat	Red Hat Openshift Data Foundation 4	—
Red Hat	Red Hat OpenShift Dev Spaces	—
Red Hat	Red Hat Process Automation 7	—
Red Hat	Red Hat Single Sign-On 7	—
Red Hat	Red Hat Trusted Artifact Signer	—

References and patches

CPE matches (NVD) (1)

cpe:2.3:a:isaacs:tar:*:*:*:*:*:node.js:*:* < 7.5.10

CVSS score

8.2High

Source: GitHub_M · CVSS 4.0

Attack vector: Local
Attack complexity: Low
Attack requirements: None
Privileges required: None
User interaction: Passive
Confidentiality: None
Integrity: High
Availability: Low

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L

All scores (5)

cna	CVSS 4.0	8.2High
redhat-SADP	CVSS 3.1	8.6High
security-advisories@github.com	CVSS 4.0	8.2High
nvd	CVSS 3.1	6.3Medium
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	CVSS 3.1	8.6High

EPSS (chance of exploitation in 30 days)

0.51%

higher than 44% of all CVEs

CISA assessment (SSVC)

Exploitation: poc
Automatable: no
Technical impact: partial

Timeline

ID reserved2026-03-04
Published2026-03-07 18:32
Reached IP-DB2026-10-24 23:42
Last updated2026-09-01 16:18

Assigned by (CNA): GitHub_M
NVD status: Modified

View at source: CVE.org · NVD

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