# CVE-2026-66984: HCL AION is affected by multiple security vulnerabilities.

Status: published. Published: 2026-11-06. Updated: 2026-11-10.

HCL AION is affected by a vulnerability where certain application responses revealed internal server file system paths. This information could help an attacker understand the application structure and plan further attacks, potentially resulting in unintended behavior or security impact under certain conditions.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- HCL Software / HCL AION: Version 2.7.0 (affected). Source: CNA: HCL

## Severity and prioritization

- CVSS 3.1: 3.1 (low); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N; source: CNA: HCL

- CVSS 3.1: 3.1 (low); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N; source: NVD: psirt@hcl.com

- CISA KEV: No listing in collected sources

- EPSS: 0.15% as of 2026-11-10; percentile 4.32%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-200

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0135217 (CNA: HCL)

- https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0135217 (psirt@hcl.com)

## Provenance

- CNA: HCL: https://www.cve.org/CVERecord?id=CVE-2026-66984; retrieved 2026-11-10; source updated 2026-11-10

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-66984; retrieved 2026-11-07; source updated 2026-11-06

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-66984; retrieved 2026-11-10; source updated Not reported

Revision: 74df2b55c52092b7d364a22416ecec9ad0d6afb91d133b8715386de90b20df19

Canonical: https://y2.dev/cve/CVE-2026-66984

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