CVE-2026-35111

HCL AION can expose resources to other browser origins

HCL Software · HCL AION

First documented disclosure · Review checkpoint

Summary

Missing resource policy weakens cross-origin isolation. Application resources lose a browser-enforced boundary against cross-origin data exposure.

Severity and exploitation evidence

Medium · 4.8/10 · 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 web interface omits or weakens its cross-origin resource policy.

Conditions required

A browser must load a vulnerable application resource from another origin.

Potential impact

Application resources lose a browser-enforced boundary against cross-origin data exposure.

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

Test resource policies from trusted and unrelated origins.

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