CVE-2026-21833: Hcl Software Aion

Low severity, CVSS 3.7. EPSS: 0.2% chance of exploitation in the next 30 days.

HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting (XSS) by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header may reduce the effectiveness of browser-based security controls, potentially resulting in unintended behavior or negative security impacts under certain conditions.

Affected products

Published 2026-10-01. Last modified 2026-10-02.