CVE-2026-66981
HCL AION is affected by multiple security vulnerabilities.
HCL AION is affected by a vulnerability where the application trusted the value of the HTTP Host header supplied in requests without validation. An attacker could manipulate this header to influence links, redirects or responses generated by the application, potentially resulting in unintended behavior or security impact under certain conditions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
What each source reports
CVE List Score used
HCL AION is affected by multiple security vulnerabilities.
HCL AION is affected by a vulnerability where the application trusted the value of the HTTP Host header supplied in requests without validation. An attacker could manipulate this header to influence links, redirects or responses generated by the application, potentially resulting in unintended behavior or security impact under certain conditions.
- Record
CVE-2026-66981- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L - Weakness
- CWE-74
- Updated
- 2026-11-06
EUVDEUVD-2026-118311
HCL AION is affected by a vulnerability where the application trusted the value of the HTTP Host header supplied in requests without validation. An attacker could manipulate this header to influence links, redirects or responses generated by the application, potentially resulting in unintended behavior or security impact under certain conditions.
- Record
EUVD-2026-118311- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-4wr2-hg9j-v736
HCL AION is affected by a vulnerability where the application trusted the value of the HTTP Host...
HCL AION is affected by a vulnerability where the application trusted the value of the HTTP Host header supplied in requests without validation. An attacker could manipulate this header to influence links, redirects or responses generated by the application, potentially resulting in unintended behavior or security impact under certain conditions.
- Record
GHSA-4wr2-hg9j-v736- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L - Weakness
- CWE-74
- Updated
- 2026-11-06
NVD
HCL AION is affected by a vulnerability where the application trusted the value of the HTTP Host header supplied in requests without validation. An attacker could manipulate this header to influence links, redirects or responses generated by the application, potentially resulting in unintended behavior or security impact under certain conditions.
- Record
CVE-2026-66981- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L - Weakness
- CWE-74
- Updated
- 2026-11-07
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD | |
| aliases, references | GitHub Advisories, NVD | |
| cwes, products, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-66981 is a medium vulnerability (CVSS 6.5) in Hcl Aion, published November 6, 2026. No source lists public exploit code. No source names a fixed version.