Description
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.
Published: 2026-11-06
Score: 3.1 Low
EPSS: n/a
KEV: No
Impact: Cross‑Site Scripting (XSS)
Action: Patch
AI Analysis

Impact

The vulnerability lies in HCL AION’s omission of the Content‑Security‑Policy response header. Without this header, a browser cannot limit script or content sources, thereby giving attackers a feasible route to inject malicious scripts or other content that can lead to cross‑site scripting or other content‑injection attacks. The described impact would be unintended behavior or potential security breaches depending on the attacker’s access and the application’s context.

Affected Systems

The affected vendor is HCL Software with the HCL AION application. No specific version range is provided in the CNA data, so all deployments of HCL AION are potentially impacted until a remedy is applied.

Risk and Exploitability

The CVSS score of 3.1 indicates low overall severity, and the EPSS score is not available, suggesting low current exploitation probability. The vulnerability is not listed in the CISA KEV catalog. The primary attack vector is inferred to be a browser‑based exploitation where a malicious web page or compromised resource can deliver injected scripts to a victim who visits the HCL AION application. The lack of a CSP header removes a critical browser‑side protective measure, but an attacker still needs a method to deliver the content, such as phishing or compromise of trusted sites.

Generated by OpenCVE AI on November 6, 2026 at 16:37 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest patch or update to HCL AION that adds the CSP header to application responses.
  • Configure the web server or application to include a strict Content‑Security‑Policy header that restricts script sources to trusted origins.
  • Monitor web traffic for unexpected script or content injections, and review application logs for signs of XSS attempts.

Generated by OpenCVE AI on November 6, 2026 at 16:37 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 06 Nov 2026 15:30:00 +0000

Type Values Removed Values Added
Description 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.
Title HCL AION is affected by multiple security vulnerabilities.
Weaknesses CWE-1021
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: HCL

Published:

Updated: 2026-11-06T15:26:32.316Z

Reserved: 2026-01-05T16:08:25.000Z

Link: CVE-2026-21834

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T16:17:56.330

Modified: 2026-11-06T16:17:56.330

Link: CVE-2026-21834

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T16:45:05Z

Weaknesses
  • CWE-1021

    Improper Restriction of Rendered UI Layers or Frames