CVE-2026-6327: IBM Concert

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM Concert 1.0.0 through 3.0.0 could allow an unauthorized user to inject data into log messages due to improper neutralization of special elements when written to log files.

Affected products

• IBM Concert: from 1.0.0, up to and including 3.0.0

Published 2026-09-23. Last modified 2026-09-28.