CVE-2026-35105

HCL AION can redirect users from its session login flow

HCL Software · HCL AION

First documented disclosure · Review checkpoint

Summary

Unvalidated session redirect to login. A user may be redirected to an untrusted login page.

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

One login branch in the user-session component accepts a configured destination without validating it.

Conditions required

A user must encounter the affected session branch with a destination an attacker can influence. HCL does not specify how configuration control is obtained.

Potential impact

A user may be redirected to an untrusted login page.

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

Apply the same destination policy to every branch that sends users to sign-in.

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