SB20260917210 - IBM Informix Dynamic Server update for node-tar

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Main Vulnerability Database SB20260917210

SB20260917210 - IBM Informix Dynamic Server update for node-tar

Published: September 17, 2026

Security Bulletin ID SB20260917210
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Uncontrolled Recursion (CVE-ID: CVE-2026-73566)

CWE-ID: CWE-674 - Uncontrolled Recursion

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled recursion in the mapHas helper used by filesFilter when processing a crafted tar archive with a non-empty member-selection list. A remote attacker can supply a specially crafted archive with a long path to cause a denial of service.

On async and streaming consumers, the resulting stack overflow raises an uncaught RangeError that terminates the Node process. The issue is triggered when listing or extracting selected members from an untrusted archive.


Remediation

Install update from vendor's website.

References