CVE-2026-23818 Open Redirect Vulnerability in HPE Aruba Networking Private 5G Core On-Prem

High 8.8 Published 7 Apr 2026 Updated 7 Apr 2026

An attacker can redirect authenticated users to a spoofed login page to steal credentials via a crafted URL in the HPE Aruba Private 5G Core GUI.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-23818?

CVE-2026-23818 is a high-severity vulnerability in Hewlett Packard Enterprise (HPE) Private 5G Core, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability has been identified in the graphical user interface (GUI) of HPE Aruba Networking Private 5G Core On-Prem that could allow an attacker to abuse an open redirect vulnerability in the login flow using a crafted URL. Successful exploitation may redirect an authenticated user to an attacker-controlled server hosting a spoofed login page prompting the unsuspecting victim to give away their credentials, which could then be captured by the attacker, before being redirected back to the legitimate login page.

Weakness: CWE-601

Which versions are affected by CVE-2026-23818?

It affects 1 product.

Products include Hpe Aruba Networking Private 5g Core.

How do I fix CVE-2026-23818?

No fix has been published for CVE-2026-23818 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-23818 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23818 exists.

Sources

Also known as GHSA-28r5-hvrv-cvq5.