# CVE-2026-46746: Command injection in SINEC INS

> An authenticated remote attacker can execute arbitrary OS commands via crafted directory names in the SFTP upload endpoint.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **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:** 9 Jun 2026
- **Updated:** 9 Jun 2026
- **Also known as:** GHSA-vxxj-9x7w-4356

## What is CVE-2026-46746?

CVE-2026-46746 is a high-severity command injection vulnerability in Siemens SINEC INS, published on 9 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6). The application does not properly sanitize user input in the /api/sftp/uploadFiles endpoint, allowing the injection of shell command payloads via crafted directory names. These payloads are stored and executed when directory listings are retrieved. This could allow an authenticated remote attacker to execute arbitrary commands on the underlying operating system with the privileges of the affected service user (sinecins).

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2026-46746?

It affects 1 product.


Products: Siemens Sinec Ins.

## How do I fix CVE-2026-46746?

No fix has been published for CVE-2026-46746 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-46746 being exploited?

There is no known exploitation of CVE-2026-46746 in the wild and no public exploit code.

## Other vulnerabilities in Siemens SINEC INS

- [CVE-2022-45092](https://insights.sbomify.com/CVE-2022-45092/): Path traversal in SINEC INS (critical 9.9)
- [CVE-2024-46888](https://insights.sbomify.com/CVE-2024-46888/): Path traversal in SINEC INS (critical 9.4)
- [CVE-2024-46890](https://insights.sbomify.com/CVE-2024-46890/): Command injection in SINEC INS (critical 9.4)
- [CVE-2026-46748](https://insights.sbomify.com/CVE-2026-46748/): Privilege escalation in SINEC INS (high 8.7)
- [CVE-2022-45093](https://insights.sbomify.com/CVE-2022-45093/): Path traversal in SINEC INS (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-46746 and fix it if it is affected.

What it is: CVE-2026-46746 is a high-severity command injection vulnerability in Siemens SINEC INS, published on 9 Jun 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-2026-46746 in the wild and no public exploit code.

Affected product: Siemens SINEC INS. 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-2026-46746/ (Markdown: https://insights.sbomify.com/CVE-2026-46746/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-46746
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-46746
- OSV: https://osv.dev/vulnerability/CVE-2026-46746

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-46746/
Summaries are generated and may contain mistakes; the official description above is the record.