CVE-2026-59871 | node-tar is a tar archive manipulation library for Node.js. … | CVSS 5.3 MEDIUM

Description

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, node-tar coerces all-digit PAX path and linkpath values in src/pax.ts to JavaScript numbers, causing downstream path handling such as normalizeWindowsPath(entry.path).split('/') to throw an uncaught TypeError. This issue is fixed in version 7.5.18.

Metadata

CVE ID: CVE-2026-59871
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-07-07 15:41 UTC
Published: 2026-07-08 15:25 UTC
Last updated: 2026-07-08 16:13 UTC
Primary CWE: CWE-704
CWE-704: Incorrect Type Conversion or Cast
Vendor / Product: isaacs / node-tar
Sources: cve.org · NVD

Severity & Metrics

5.3 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
isaacs	node-tar	—	< 7.5.18

Weakness (CWE)

CWE	Source	Description
CWE-704	cna	CWE-704: Incorrect Type Conversion or Cast

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.3	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References (3)

https://github.com/isaacs/node-tar/security/advisories/GHSA-w8wr-v893-vjvp https://github.com/isaacs/node-tar/security/advisories/GHSA-w8wr-v893-vjvp
https://github.com/isaacs/node-tar/commit/e02a4e9e013c4be95302e2eb2047a942b883c27b https://github.com/isaacs/node-tar/commit/e02a4e9e013c4be95302e2eb2047a942b883c27b
https://github.com/isaacs/node-tar/releases/tag/v7.5.18 https://github.com/isaacs/node-tar/releases/tag/v7.5.18