CVE-2026-21834 · Vendor
NO FIX YET
HCL AION application responses omit the Content-Security-Policy security header. Without it, the browser does not restrict where scripts and other content may load from, which increases exposure to cross-site scripting and content injection.
first public Nov 6, 2026 · 1 source
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Organizations running HCL AION web application deployments. The sources do not list affected versions or name a configuration that would make an instance exposed, so the scope is unknown.
Who cares hcl-aion
Unknown from the sources.
No fix yet, per the sources.
HCL AION is affected by a vulnerability where the Content-Security-Policy (CSP) security response header was missing from application responses. Without this header, the browser does not restrict the sources of scripts and other content, increasing exposure to cross-site scripting and content-injection attacks, potentially resulting in unintended behavior or security impact under certain conditions.
This page as .md · .json · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
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