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CVE-2026-21833— HCL AION is susceptible to a Missing "Content-Security-Policy" header Vulnerability (CVE-2026-21833)

Quick assessment

Affected
HCL Software AION
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HCL AION 存在一个漏洞，其 HTTP 响应头中未配置内容安全策略（Content-Security-Policy, CSP）。CSP 通过限制脚本、样式及其他资源的加载来源，有助于防范跨站脚本攻击（XSS）等威胁。缺少该响应头可能会削弱基于浏览器的安全控制机制的有效性，在某些条件下可能导致非预期行为或产生负面的安全影响。

CVSS 3.7 · Low
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I. Basic Information for CVE-2026-21833

Vulnerability Information
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Vulnerability Title
HCL AION is susceptible to a Missing "Content-Security-Policy" header Vulnerability (CVE-2026-21833)
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
OWASP 2017年十大分类A6-安全配置错误
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
HCL Software AION Version 2.5.0 -

II. Public POCs for CVE-2026-21833

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III. Intelligence Information for CVE-2026-21833

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Other References for CVE-2026-21833 (1)

Same Patch Batch · HCL Software · 2026-10-01 · 14 CVEs total

CVE-2026-66246 8.8 HIGH HCL iControl is affected by multiple security vulnerabilities
CVE-2026-67105 7.4 HIGH HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-56589 7.2 HIGH HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-67171 5.3 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-67106 5.3 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-67104 5.3 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2025-31980 4.3 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-66247 4.3 MEDIUM iControl不安全CORS策略致敏感数据泄露漏洞
CVE-2026-67172 3.7 LOW HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-66253 3.1 LOW HCL iControl is affected by a Session Timeout vulnerability
CVE-2026-66249 3.1 LOW HCL iControl is affected by a Missing Secure Attribute vulnerability
CVE-2026-66248 3.1 LOW HCL iControl is affected by an Improper Error Handling vulnerability
CVE-2026-56599 2.2 LOW HCL BigFix Service Management is affected by multiple security vulnerabilities.

IV. Related Vulnerabilities

Same product: AION
Same vendor: HCL Software
Same weakness: CWE-1032

V. Comments for CVE-2026-21833

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