CVE-2026-59871node-tar: Process crash via PAX numeric path type confusion

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.

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

Affected products and versions

References and patches

• https://github.com/isaacs/node-tar/security/advisories/GHSA-w8wr-v893-vjvp ExploitVendor Advisory
• https://github.com/isaacs/node-tar/commit/e02a4e9e013c4be95302e2eb2047a942b883c27b Patch
• https://github.com/isaacs/node-tar/releases/tag/v7.5.18 Release Notes