CVE-2026-21849 Details
Description
HCL AION is affected by a missing encryption vulnerability in the WebSocket connection set up by the GenAI web interface. The connection used the unencrypted WebSocket protocol (ws://localhost:8000) instead of an encrypted (wss://) channel. This may allow data exchanged over the connection to be intercepted or read by an attacker on the network, potentially resulting in unintended behavior or security impact under certain conditions.
A missing encryption vulnerability has been identified in HCL AION versions 2.6.0 and 2.7.0. The issue arises in the WebSocket connection established by the GenAI web interface, which used an unencrypted WebSocket protocol (ws://localhost:8000) instead of an encrypted channel (wss://). This vulnerability may allow an attacker to intercept or read data exchanged over the connection, potentially leading to unintended behavior or security impacts under certain conditions.
Users can upgrade to HCL AION version 2.8.0, which addresses this vulnerability. For assistance with the upgrade process, contact the HCL AION support team.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 6, 2026CISA-ADP
Assessed Nov 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0135118 | [email protected] | AdvisoryBundleRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-311 | Missing Encryption of Sensitive Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| HCL AION | 2.6.0 (semver) 2.7.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 6, 2026 | CVE Modified | CISA-ADP |
| Nov 6, 2026 | New CVE Received | [email protected] |