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CVE-2026-21834— HCL AION is affected by multiple security vulnerabilities.

Quick assessment

Affected
HCL Software HCL 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 存在一个安全漏洞：应用程序响应中缺少内容安全策略（Content-Security-Policy，CSP）安全响应头。由于缺少该头部，浏览器无法限制脚本及其他内容的来源，从而增加了跨站脚本攻击（XSS）和内容注入攻击的风险，在特定条件下可能导致非预期行为或安全影响。

CVSS 3.1 · Low
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I. Basic Information for CVE-2026-21834

Vulnerability Information
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Vulnerability Title
HCL AION is affected by multiple security vulnerabilities.
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不当限制渲染UI层或帧
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
HCL Software HCL AION Version 2.7.0 -

II. Public POCs for CVE-2026-21834

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-21834

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Other References for CVE-2026-21834 (1)

Same Patch Batch · HCL Software · 2026-11-06 · 22 CVEs total

CVE-2026-66981 6.5 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-21850 6.5 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35110 5.4 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-66987 5.3 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35111 4.8 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35113 4.8 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35102 4.7 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35103 4.7 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35104 4.7 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35105 4.7 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35106 4.7 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35107 4.7 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35112 4.2 MEDIUM HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35114 3.7 LOW HCL AION is affected by multiple security vulnerabilities.
CVE-2026-5345 3.7 LOW HCL AION is affected by multiple security vulnerabilities.
CVE-2026-21849 3.7 LOW HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35109 3.7 LOW HCL AION is affected by multiple security vulnerabilities.
CVE-2026-35115 3.7 LOW HCL AION is affected by multiple security vulnerabilities.
CVE-2026-66982 3.3 LOW HCL AION is affected by multiple security vulnerabilities.
CVE-2026-66986 3.3 LOW HCL AION is affected by multiple security vulnerabilities.

Showing top 20 of 22 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: HCL AION
Same vendor: HCL Software
Same weakness: CWE-1021