CVE-2026-35104

HCL AION accepts an untrusted redirect after registration

HCL Software · HCL AION

First documented disclosure · Review checkpoint

Summary

Unvalidated redirect after account registration. The user may be redirected to an untrusted website after registration.

Severity and exploitation evidence

Medium · 4.7/10 · CVSS 3.1. Severity source.

Exploitation not established: The reviewed public sources describe the vulnerability and its conditions. Malicious exploitation has not been established in the reviewed sources.

Exploitation evidence source

Technical severity is not a measure of observed attacks or of risk to your deployment. Attempts, demonstrations, and successful compromise retain the qualifications in the source.

How the weakness works

The signup flow accepts an externally supplied return destination without validating it.

Conditions required

A user must complete registration through an affected link.

Potential impact

The user may be redirected to an untrusted website after registration.

Affected versions and configurations

2.6.0.

Fix and mitigation status

2.8.0.

Practical next steps

Upgrade HCL AION to 2.8.0 and verify the affected control in the deployed interface.

Operating lesson

Accept only approved return destinations after account creation.

Evidence and limits

HCL bulletin KB0135118 was published 2026-11-04 and identifies 2.8.0 as the fix. HCL’s CVE record gives 2026-11-03 as its public date.

Sources