isaacs node-tar up to 7.5.17 Archive Scanner replace denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in isaacs node-tar up to 7.5.17 and classified as critical. This vulnerability affects the function replace of the component Archive Scanner. Such manipulation leads to denial of service. This vulnerability is referenced as CVE-2026-59874. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in isaacs node-tar up to 7.5.17. Affected by this issue is the function replace of the component Archive Scanner. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. The impact remains unknown. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-59874 since 07/07/2026. The exploitation is known to be easy. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 330426 (RHEL 8 : nodejs:24 (RHSA-2026:47060)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.5.18 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (330426). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 330426
Nessus Name: RHEL 8 : nodejs:24 (RHSA-2026:47060)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: node-tar 7.5.18

Timelineinfo

07/07/2026 CVE reserved
07/08/2026 +1 days Advisory disclosed
07/08/2026 +0 days VulDB entry created
07/29/2026 +21 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-59874 (🔒)
GCVE (CVE): GCVE-0-2026-59874
GCVE (VulDB): GCVE-100-376940

Entryinfo

Created: 07/08/2026 19:06
Updated: 07/29/2026 06:25
Changes: 07/08/2026 19:06 (52), 07/08/2026 19:07 (2), 07/12/2026 20:58 (23), 07/29/2026 06:25 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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