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

No history.

Information

Published : 2026-07-08 16:16

Updated : 2026-07-10 18:54

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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