# CVE-2026-35104: HCL AION open redirect on registration page

Source: https://junglewise.ai/threats/cve-2026-35104-hcl-aion-is-affected-by-an-open-redirect-vulnerability-on-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-06. Updated: 2026-11-06  
License: CC BY 4.0 with a link back

CVE-2026-35104 · Severity: medium · CVSS 4.7 · Published 2026-11-06

HCL AION is an identity and access management platform used to authenticate and authorize users in enterprise applications. The user registration page fails to validate where it redirects users after signup, allowing attackers to craft malicious registration links that send users to phishing sites or other untrusted domains. This can be exploited to trick users into disclosing credentials or installing malware.

Technologies: [HCL AION](https://junglewise.ai/threats/technologies/aion). Vendors: [HCL](https://junglewise.ai/threats/vendors/hcl).

## Quick answers

**Is CVE-2026-35104 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-35104 being exploited in the wild.

**How severe is CVE-2026-35104?** Medium severity, with a CVSS score of 4.7, published 6 November 2026.

**Which products and versions are affected?** HCL AION.

**Is there a fix for CVE-2026-35104?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-35104 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-35104?** Check whether you run HCL AION. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An open redirect vulnerability exists in the Signup component where the 'redirect' query parameter is accepted without validation and used to redirect the user after successful registration. An attacker can craft a registration link with a malicious redirect URL to perform phishing attacks or social engineering. The vulnerability requires user interaction (visiting a crafted link and completing registration).

## Affected products

- HCL AION

## Timeline

- 2026-11-06: disclosed

## References

- [https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0135118](https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0135118)

## Related threats

- [HCL AION weak account lockout brute-force](https://junglewise.ai/threats/cve-2026-66987-hcl-aion-is-affected-by-a-vulnerability-where-the-account-lockout)
- [HCL AION HTTP Host header injection](https://junglewise.ai/threats/cve-2026-66981-hcl-aion-is-affected-by-a-vulnerability-where-the-application)
- [HCL AION missing Cross-Origin-Opener-Policy header](https://junglewise.ai/threats/cve-2026-35113-hcl-aion-is-affected-by-a-vulnerability-where-the-cross-origin)
- [HCL AION missing Cross-Origin-Embedder-Policy header](https://junglewise.ai/threats/cve-2026-35112-hcl-aion-is-affected-by-a-vulnerability-where-the-cross-origin)
- [HCL AION missing cross-origin resource policy header](https://junglewise.ai/threats/cve-2026-35111-hcl-aion-is-affected-by-a-vulnerability-where-the-cross-origin)