CVE-2019-4173: IBM Cognos Controller

Medium severity, CVSS 6.5. EPSS: 1.8% chance of exploitation in the next 30 days.

IBM Cognos Controller 10.2.0, 10.2.1, 10.3.0, 10.3.1, and 10.4.0 could allow a remote attacker to obtain sensitive information, caused by a flaw in the HTTP OPTIONS method, aka Optionsbleed. By sending an OPTIONS HTTP request, a remote attacker could exploit this vulnerability to read secret data from process memory and obtain sensitive information. IBM X-Force ID: 158878.

Affected products

• IBM Cognos Controller: version 10.2.0 only; version 10.2.1 only; version 10.3.0 only; version 10.3.1 only; version 10.4.0 only

Published 2019-06-17. Last modified 2026-06-17.