CVE-2026-59874

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/isaacs/node-tar/commit/9e78bf058b2c22dd4d52e00d8922d5c06fc2f7b5	Patch
https://github.com/isaacs/node-tar/releases/tag/v7.5.18	Release Notes
https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5w	Exploit Vendor Advisory
https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5w	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:isaacs:tar:*:*:*:*:*:node.js:*:*

History

25 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) node-tar es una biblioteca de manipulación de archivos tar para Node.js. Antes de la versión 7.5.18, tar.replace acepta un encabezado tar válido por suma de verificación con un tamaño de entrada codificado en base-256 negativo, lo que provoca que el escáner de archivos no avance mientras analiza repetidamente el mismo encabezado. Este problema está solucionado en la versión 7.5.18.

Information

Published : 2026-07-08 16:16

Updated : 2026-10-25 17:10

NVD link : CVE-2026-59874

Mitre link : CVE-2026-59874

CVE.ORG link : CVE-2026-59874

JSON object : View

Products Affected

isaacs

tar

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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