# CVE-2026-112360: Netis EAP930 CGI Endpoint debug return200 backdoor

> Attackers can bypass authentication via a backdoor in the debug CGI endpoint, though exploitation requires high complexity.

- **Severity:** High 8.9 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Oct 2026
- **Updated:** 20 Oct 2026
- **Also known as:** GHSA-4wqx-c3pj-5r3f

## What is CVE-2026-112360?

CVE-2026-112360 is a high-severity authentication bypass vulnerability in Netis EAP930, published on 19 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A security vulnerability has been detected in Netis EAP930 1.250905.115454. This issue affects the function return200 of the file /cgi-bin/debug of the component CGI Endpoint. The manipulation of the argument SIGNATURE leads to backdoor. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is assessed as difficult. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-912 (Hidden Functionality)

## Which versions are affected by CVE-2026-112360?


## How do I fix CVE-2026-112360?

No fix has been published for CVE-2026-112360 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-112360 being exploited?

There is no known exploitation of CVE-2026-112360 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-112360 and fix it if it is affected.

What it is: CVE-2026-112360 is a high-severity authentication bypass vulnerability in Netis EAP930, published on 19 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-112360 in the wild and no public exploit code.

Affected product: Netis EAP930. 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-2026-112360/ (Markdown: https://insights.sbomify.com/CVE-2026-112360/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-112360
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-112360
- OSV: https://osv.dev/vulnerability/CVE-2026-112360

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-112360/
Summaries are generated and may contain mistakes; the official description above is the record.