CVE-2026-0689 XIQ‑SE NAC Admin Credential Exposure via HTTP Response
An authenticated NAC administrator can retrieve masked sensitive credentials from HTTP responses, exposing stored secrets beyond intended access levels.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0689?
CVE-2026-0689 is a medium-severity vulnerability in ExtremeCloud IQ - Site Engine, published on 2 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In ExtremeCloud IQ – Site Engine (XIQ‑SE) before 26.2.10, a vulnerability in the NAC administration interface allows an authenticated NAC administrator to retrieve masked sensitive parameters from HTTP responses. Although credentials appear redacted in the user interface, the application returns the underlying credential values in the HTTP response, enabling an authorized administrator to recover stored secrets that may exceed their intended access.
We would like to thank the Lockheed Martin Red Team for responsibly reporting this issue and working with us through coordinated disclosure.
Weakness: CWE-522
Which versions are affected by CVE-2026-0689?
It affects 1 product.
Products include Extremenetworks Extremecloud Iq Site Engine.
How do I fix CVE-2026-0689?
No fix has been published for CVE-2026-0689 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-0689 being exploited?
There is no known exploitation of CVE-2026-0689 in the wild and no public exploit code.
Sources
Also known as GHSA-h936-j5jq-8grm.