PT-2026-56492 · Isaacs · Node-Tar

Published 2026-07-08 · Updated 2026-07-08 · CVE-2026-59871

Mitre

CVSS v3.1

5.3

Medium

Base vector

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

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.

Exploit

Fix

Incorrect Type Conversion or Cast

Weakness Enumeration

CWE-704

Related Identifiers

CVE-2026-59871

Affected Products

Node-Tar

References · 4

• 🔥 https://github.com/isaacs/node-tar/security/advisories/GHSA-w8wr-v893-vjvp · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-59871 · Security Note
• https://github.com/isaacs/node-tar/releases/tag/v7.5.18 · Note
• https://github.com/isaacs/node-tar/commit/e02a4e9e013c4be95302e2eb2047a942b883c27b · Note