CVE-2026-21833
HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response header is not configured. CSP helps prevent
CVSS
3.7
Low
EPSS
0.2%
p10
KEV
—
Exploit Today
3
0-100
Published: Oct 1, 2026 · Last modified: Oct 2, 2026 · CWE-1032
0.2%EPSS · 30 days0.2%
2026-10-022026-10-25
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.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2025-526353.7 LOW17.8%
——5A
rusted types in scripts not enforced in CSP vulnerability has been identified
in HCL AION.This issue affects AION: 2.0.17dCVE-2025-526245.4 MED9.8%
——3A vulnerability Bypass of the script allowlist configuration in HCL AION.
An incorrectly configured Content-Security-Policy header may allow unauthorized scripts to execute, increasing the risk of cross-site scripting and other injection-based attacks.This issue affects AION: 2.0.17dCVE-2025-526508.2 HIG14.1%
——4Inline script execution allowed in CSP vulnerability has been identified in HCL AION v2.017d