# CVE-2026-104075: TVU Networks Receiver/Transceiver Authentication Bypass via /tvu/Login

> Remote attackers can bypass authentication on TVU Receiver/Transceiver devices by submitting an empty username, gaining full administrative control.

- **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:** 8 Oct 2026
- **Updated:** 14 Oct 2026
- **Also known as:** GHSA-6m79-2fc6-x428

## What is CVE-2026-104075?

CVE-2026-104075 is a critical authentication bypass vulnerability in TVU Receiver / Transceiver, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

TVU Networks Receiver/Transceiver devices running firmware before version 7.9 contain an authentication bypass vulnerability in the web management login endpoint POST /tvu/Login that allows remote unauthenticated attackers to obtain an administrative session by submitting an empty or absent UserName parameter. Attackers can send a crafted HTTP request directly, bypassing client-side JavaScript validation, to receive a valid session cookie regardless of the password value and gain full administrative control of the device's web management interface.

Weakness: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2026-104075?


## How do I fix CVE-2026-104075?

No fix has been published for CVE-2026-104075 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-104075 being exploited?

There is no known exploitation of CVE-2026-104075 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-104075 and fix it if it is affected.

What it is: CVE-2026-104075 is a critical authentication bypass vulnerability in TVU Receiver / Transceiver, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-104075 in the wild and no public exploit code.

Affected product: TVU Receiver / Transceiver. 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-2026-104075/ (Markdown: https://insights.sbomify.com/CVE-2026-104075/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-104075
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-104075
- OSV: https://osv.dev/vulnerability/CVE-2026-104075

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-104075/
Summaries are generated and may contain mistakes; the official description above is the record.