CVE-2026-19543: IBM Common Licensing

Medium severity, CVSS 6.2. EPSS: 0.1% chance of exploitation in the next 30 days.

IBM Common Licensing Agent 9.0, Agent 9.0.0.1, Agent 9.0.0.2, ART 9.0, ART 9.0.0.1, and ART 9.0.0.2 performs input validation exclusively on the client side and fails to enforce the same restrictions on the server side. An attacker can modify requests to bypass validation controls and submit unauthorized values, potentially resulting in unintended application behavior.

Affected products

• IBM Common Licensing

Published 2026-09-14. Last modified 2026-09-16.