VDB-349875 · CVE-2026-31802 · GCVE-0-2026-31802

isaacs node-tar up to 7.5.10 path traversal

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5.2	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in isaacs node-tar up to 7.5.10. This impacts an unknown function. Performing a manipulation results in path traversal. This vulnerability is known as CVE-2026-31802. Attacking locally is a requirement. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in isaacs node-tar up to 7.5.10. This affects an unknown functionality. 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 integrity, and availability. The summary by CVE is:

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-31802 since 03/09/2026. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 7.5.11 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

isaacs

Name

node-tar

Version

Website

Product: https://github.com/isaacs/node-tar/

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: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.1
VulDB Temp Score: 4.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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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: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: node-tar 7.5.11

Timelineinfo

03/09/2026 Advisory disclosed
03/09/2026 +0 days CVE reserved
03/09/2026 +0 days VulDB entry created
03/19/2026 +10 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-31802 (🔒)
GCVE (CVE): GCVE-0-2026-31802
GCVE (VulDB): GCVE-100-349875

Entryinfo

Created: 03/09/2026 23:27
Updated: 03/19/2026 15:16
Changes: 03/09/2026 23:27 (66), 03/13/2026 01:46 (1), 03/19/2026 15:16 (11)
Complete: 🔍
Cache ID: 216::103