# CVE-2026-26366: JUNG eNet SMART HOME server 2.2.1/2.3.1 Use of Default Credentials

> Attackers can use default credentials to gain administrative access to the smart home server, allowing them to modify configuration and control functions.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Feb 2026
- **Updated:** 17 Feb 2026
- **Also known as:** GHSA-5cwq-67p7-h8hr

## What is CVE-2026-26366?

CVE-2026-26366 is a critical vulnerability in JUNG eNet SMART HOME server, published on 15 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

eNet SMART HOME server 2.2.1 and 2.3.1 ships with default credentials (user:user, admin:admin) that remain active after installation and commissioning without enforcing a mandatory password change. Unauthenticated attackers can use these default credentials to gain administrative access to sensitive smart home configuration and control functions.

Weakness: CWE-1392 (Use of Default Credentials)

## Which versions are affected by CVE-2026-26366?

It affects 1 product.


Products: Jung-Group Enet Smart Home.

## How do I fix CVE-2026-26366?

No fix has been published for CVE-2026-26366 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-26366 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-26366 exists.

## Other vulnerabilities in JUNG eNet SMART HOME server

- [CVE-2026-26368](https://insights.sbomify.com/CVE-2026-26368/): JUNG eNet SMART HOME server 2.2.1/2.3.1 Account Takeover via resetUserPassword (high 8.7)
- [CVE-2026-26369](https://insights.sbomify.com/CVE-2026-26369/): JUNG eNet SMART HOME server 2.2.1/2.3.1 Privilege Escalation via setUserGroup (high 8.7)
- [CVE-2026-26367](https://insights.sbomify.com/CVE-2026-26367/): JUNG eNet SMART HOME server 2.2.1/2.3.1 Arbitrary User Deletion via deleteUserAccount (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-26366 and fix it if it is affected.

What it is: CVE-2026-26366 is a critical vulnerability in JUNG eNet SMART HOME server, published on 15 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-26366 exists.

Affected product: JUNG eNet SMART HOME server. 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-2026-26366/ (Markdown: https://insights.sbomify.com/CVE-2026-26366/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-26366
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-26366
- OSV: https://osv.dev/vulnerability/CVE-2026-26366

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-26366/
Summaries are generated and may contain mistakes; the official description above is the record.