Security Bulletin: IBM InfoSphere Optim Archive Viewer is affected by a vulnerability in js-yaml (CVE-2026-53550)

Summary A Denial of Service vulnerability in the js-yaml document parsing library CVE-2026-53550 used by IBM InfoSphere Optim Archive Viewer has been addressed by upgrading the component to version 4.3.1. Vulnerability Details CVEID:CVE-2026-53550 DESCRIPTION: js-yaml is a JavaScript YAML parser...

CVE-2026-53550: Inefficient Algorithmic Complexity

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...