CVE-2026-59874: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') in isaacs node-tar
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.
CVE-2026-59874: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') in isaacs node-tar
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.
CVSS v4.0
Score 8.7high
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-07T15:41:53.607Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4e73c2c9d9e3dbe36042ca
Added to database: 07/08/2026, 15:58:58 UTC
Last updated: 07/08/2026, 15:58:58 UTC
Views: 1
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