Medium severity4.8NVD Advisory· Published Aug 20, 2026· Updated Aug 28, 2026
CVE-2026-21784
CVE-2026-21784
Description
HCL IntelliOps Event Management (IEM) is affected by missing or insecure Cross-Origin Security headers. This issue makes the application's environment and resources susceptible to unauthorized external interaction and potential exploitation.
Affected products
1Patches
Vulnerability mechanics
References
1News mentions
1- HCL IntelliOps IEM: Five Medium-Severity Flaws Disclosed TogetherVypr Intelligence · Aug 20, 2026