isaacs node-tar up to 7.5.2 path traversal

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in isaacs node-tar up to 7.5.2. Affected by this vulnerability is an unknown functionality. The manipulation results in path traversal. This vulnerability is reported as CVE-2026-23745. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in isaacs node-tar up to 7.5.2. It has been classified as critical. Affected is an unknown code block. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-23745 since 01/15/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 291301 (Linux Distros Unpatched Vulnerability : CVE-2026-23745), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.5.3 eliminates this vulnerability. Applying the patch 340eb285b6d986e91969a1170d7fe9b0face405e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (291301), EUVD (EUVD-2026-2909) and CERT Bund (WID-SEC-2026-0770). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Red Hat Enterprise Linux
  • Atlassian Jira

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 291301
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-23745

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: node-tar 7.5.3
Patch: 340eb285b6d986e91969a1170d7fe9b0face405e

Timelineinfo

01/15/2026 CVE reserved
01/16/2026 +1 days Advisory disclosed
01/16/2026 +0 days VulDB entry created
06/30/2026 +165 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-8qq5-rm4j-mr97
Status: Confirmed

CVE: CVE-2026-23745 (🔒)
GCVE (CVE): GCVE-0-2026-23745
GCVE (VulDB): GCVE-100-341682
EUVD: 🔒
CERT Bund: WID-SEC-2026-0770 - Atlassian Jira: Mehrere Schwachstellen

Entryinfo

Created: 01/16/2026 23:28
Updated: 06/30/2026 13:09
Changes: 01/16/2026 23:28 (69), 01/17/2026 03:34 (1), 01/17/2026 20:59 (2), 02/18/2026 17:40 (11), 03/18/2026 19:10 (7), 05/19/2026 16:06 (1), 06/30/2026 13:09 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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