Medium 5.3Published Jul 8, 2026

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

Updated under an hour ago (Oct 26, 2026, 12:50 PM ET)

Does this affect you?

It affects isaacs node-tar and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for isaacs node-tar

Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE): CWE-704
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jul 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

isaacs node-tar isaacs:node_tar (from the name)	before 7.5.18	CNA record
isaacs tar isaacs:tar	before 7.5.18	NVD

References

References

https://github.com/isaacs/node-tar/security/advisories/GHSA-w8wr-v893-vjvp	x-refsource-confirm, exploit, vendor-advisory
https://github.com/isaacs/node-tar/commit/e02a4e9e013c4be95302e2eb2047a942b883c27b	x-refsource-misc, patch
https://github.com/isaacs/node-tar/releases/tag/v7.5.18	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.