# 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.

- **Severity:** Medium 6.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Mar 2026
- **Updated:** 2 Mar 2026
- **Also known as:** GHSA-h936-j5jq-8grm

## 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 (Insufficiently Protected Credentials)

## Which versions are affected by CVE-2026-0689?

It affects 1 product.


Products: 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.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0689 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-0689 in the wild and no public exploit code.

Affected product: ExtremeCloud IQ - Site Engine. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-0689/ (Markdown: https://insights.sbomify.com/CVE-2026-0689/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0689
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0689
- OSV: https://osv.dev/vulnerability/CVE-2026-0689

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-0689/
Summaries are generated and may contain mistakes; the official description above is the record.