Vulnerability Description
node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to make no progress while repeatedly parsing the same header. This issue is fixed in version 7.5.18.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Isaacs | Tar | < 7.5.18 |
Related Weaknesses (CWE)
References
- https://github.com/isaacs/node-tar/commit/9e78bf058b2c22dd4d52e00d8922d5c06fc2f7Patch
- https://github.com/isaacs/node-tar/releases/tag/v7.5.18Release Notes
- https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5wExploitVendor Advisory
- https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5wExploitVendor Advisory
FAQ
What is CVE-2026-59874?
CVE-2026-59874 is a vulnerability with a CVSS score of 7.5 (HIGH). node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to...
How severe is CVE-2026-59874?
CVE-2026-59874 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-59874?
Check the references section above for vendor advisories and patch information. Affected products include: Isaacs Tar.