# CVE-2026-19656: ScadaLTS Authenticated Remote Code Execution

> Authenticated low-privilege users can execute arbitrary OS commands as root due to missing authorization checks in ScadaLTS.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Aug 2026
- **Updated:** 12 Aug 2026
- **Also known as:** GHSA-9cw4-v739-q6qp

## What is CVE-2026-19656?

CVE-2026-19656 is a critical missing authorization vulnerability in SCADA-LTS ScadaLTS, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

ScadaLTS 2.7.8.1 exposes a server-side method that lacks authorization checks, allowing any authenticated user (including one holding only low-privilege, read-only permissions) to execute arbitrary operating system commands on the host. Successful exploitation results in code execution in the context of the ScadaLTS server process (root), leading to full compromise of the underlying system.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-19656?

It affects 1 product.


Products: Scada-Lts Scada-Lts.

## How do I fix CVE-2026-19656?

No fix has been published for CVE-2026-19656 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-19656 being exploited?

There is no known exploitation of CVE-2026-19656 in the wild and no public exploit code.

## Other vulnerabilities in SCADA-LTS ScadaLTS

- [CVE-2022-41976](https://insights.sbomify.com/CVE-2022-41976/): Privilege escalation in n/a (critical 9.9)
- [CVE-2023-33472](https://insights.sbomify.com/CVE-2023-33472/): Code injection in n/a (high 8.8)
- [CVE-2026-19657](https://insights.sbomify.com/CVE-2026-19657/): ScadaLTS Unauthenticated Reflected XSS (medium 6.1)
- [CVE-2025-13790](https://insights.sbomify.com/CVE-2025-13790/): Scada-LTS cross-site request forgery (medium 5.3)
- [CVE-2025-13791](https://insights.sbomify.com/CVE-2025-13791/): Scada-LTS Project Import ZIPProjectManager.java Common.getHomeDir path traversal (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-19656 and fix it if it is affected.

What it is: CVE-2026-19656 is a critical missing authorization vulnerability in SCADA-LTS ScadaLTS, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-19656 in the wild and no public exploit code.

Affected product: SCADA-LTS ScadaLTS. 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-2026-19656/ (Markdown: https://insights.sbomify.com/CVE-2026-19656/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-19656
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19656
- OSV: https://osv.dev/vulnerability/CVE-2026-19656

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-19656/
Summaries are generated and may contain mistakes; the official description above is the record.