SB2026092419 - IBM InfoSphere Optim Archive Viewer update for js-yaml

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026092419

SB2026092419 - IBM InfoSphere Optim Archive Viewer update for js-yaml

Published: September 24, 2026

Security Bulletin ID SB2026092419
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) Inefficient Algorithmic Complexity (CVE-ID: CVE-2026-53550)

CWE-ID: CWE-407 - Inefficient Algorithmic Complexity

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 algorithmic complexity in merge-key processing in lib/loader.js when parsing crafted YAML documents with repeated aliases in a merge sequence. A remote attacker can submit a specially crafted YAML document to cause a denial of service.

The issue causes quadratic parse-time behavior relative to input size and can block a Node.js worker or event loop for seconds with a relatively small payload.


Remediation

Install update from vendor's website.

References