Infinite loop 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-17909068
- published9 Jul 2026
- disclosed8 Jul 2026
- creditJvr2022 Jvr
Introduced: 8 Jul 2026
NewCVE-2026-59874 (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 Infinite loop via the replace method. An attacker can cause the archive scanner to enter an infinite loop by providing a tar header with a negative base-256 encoded entry size.