CVE-2026-59874
Last modified
CVE-2026-59874 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Isaacs | Tar | < 7.5.18 |
References
- https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5wExploit, Vendor Advisory
- https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5wExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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