Incorrect Type Conversion or Cast Affecting tar package, versions <7.5.18
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-TAR-17909104
- published9 Jul 2026
- disclosed8 Jul 2026
- creditIsmail Pelaseyed
Introduced: 8 Jul 2026
NewCVE-2026-59871 (opens in a new tab)How to fix?
Upgrade tar to version 7.5.18 or higher.
Overview
tar is a full-featured Tar for Node.js.
Affected versions of this package are vulnerable to Incorrect Type Conversion or Cast via the src/pax.ts file. An attacker can cause a process crash by providing all-digit PAX path or linkpath values that are coerced to JavaScript numbers, leading to a TypeError during downstream path handling.