CVE-2026-59874 — node-tar: Negative tar entry size causes infinite loop in archive replace
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…
Published: 2026-07-08 · CVSS: 8.7 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7