Missing Content-Security-Policy header in HCL AION
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-1021.
Summary
HCL AION version 2.7.0 does not send the Content-Security-Policy header in its application responses. Without this header, browsers do not restrict the sources of scripts and other content, which increases exposure to cross-site scripting and content-injection attacks (CWE-1021). A remote attacker with low privileges and high attack complexity may cause unintended behavior or a limited loss of confidentiality under certain conditions.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HCL Software | HCL AION | Version 2.7.0 | — | No fix listed | CNA |
- HCL AION VendorHCL Software Affected Version 2.7.0 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for HCL AION.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Timeline
- 2026-11-06 Threatist record created from CVE-2026-21834
- 2026-11-06 Alias added: GHSA-3x34-rrf9-2wfx
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- TI-2022-22042 Out-of-bounds write in HCL Software Notes CVSS 3.1CRITICAL 9.8
- TI-2022-22041 Out-of-bounds write in HCL Software Domino CVSS 3.1CRITICAL 9.8
- TI-2022-22040 Out-of-bounds write in HCL Software Notes CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-21834 · CVE Program
- CVE-2026-21834 · NVD
- FIRST EPSS
- GHSA-3x34-rrf9-2wfx · GitHub Advisory Database · CC BY 4.0
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