# CVE-2026-13207: Frangoteam FUXA SCADA/HMI Authentication Bypass by Spoofing

> Attackers can bypass authentication in FUXA SCADA/HMI to access sensitive user and role data via path normalization flaws.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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:** 30 Jun 2026
- **Updated:** 1 Jul 2026
- **Also known as:** GHSA-cgxf-x59w-2x25

## What is CVE-2026-13207?

CVE-2026-13207 is a high-severity authentication bypass vulnerability in Frangoteam FUXA SCADA/HMI, published on 30 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

FUXA versions 1.3.1 and prior contain an authentication bypass vulnerability via dot-segment path normalization in the REST API. The API router fails to normalize dot-segment sequences before applying authentication middleware, allowing unauthenticated requests to access protected endpoints by prefixing paths with dot-segments such as /api/./users, /api/./roles, and /api/project/../users. These requests bypass authentication checks and return sensitive user and role data without credentials.

Weakness: CWE-290 (Authentication Bypass by Spoofing)

## Which versions are affected by CVE-2026-13207?


## How do I fix CVE-2026-13207?

No fix has been published for CVE-2026-13207 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-13207 being exploited?

There is no known exploitation of CVE-2026-13207 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13207 and fix it if it is affected.

What it is: CVE-2026-13207 is a high-severity authentication bypass vulnerability in Frangoteam FUXA SCADA/HMI, published on 30 Jun 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-2026-13207 in the wild and no public exploit code.

Affected product: Frangoteam FUXA SCADA/HMI. 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-2026-13207/ (Markdown: https://insights.sbomify.com/CVE-2026-13207/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13207
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13207
- OSV: https://osv.dev/vulnerability/CVE-2026-13207

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-13207/
Summaries are generated and may contain mistakes; the official description above is the record.