CVE-2026-59874

UNKNOWN 0.0

node-tar: Negative tar entry size causes infinite loop in archive replace

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-835
Vendor	isaacs
Product	node-tar
Published	Jul 8, 2026
Last Updated	Jul 8, 2026

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Affected Versions

isaacs / node-tar

< 7.5.18

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5w github.com: https://github.com/isaacs/node-tar/commit/9e78bf058b2c22dd4d52e00d8922d5c06fc2f7b5 github.com: https://github.com/isaacs/node-tar/releases/tag/v7.5.18