# CVE-2026-35906: Command injection in n/a

> Unauthenticated attackers can execute arbitrary system commands as root via a hidden debug CGI endpoint in T3 Technology CPE devices.

- **Severity:** Critical 9.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Jun 2026
- **Updated:** 4 Jun 2026
- **Also known as:** GHSA-9qwx-6gr4-xcgx

## What is CVE-2026-35906?

CVE-2026-35906 is a critical command injection vulnerability in n/a, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An undocumented debug CGI endpoint in T3 Technology CPE models T625Pro v1.0.07, T6825G v1.0.03 allows unauthenticated attackers to execute arbitrary system commands as root via supplying a crafted HTTP query string.

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

## Which versions are affected by CVE-2026-35906?


## How do I fix CVE-2026-35906?

No fix has been published for CVE-2026-35906 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-35906 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35906 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-35906 and fix it if it is affected.

What it is: CVE-2026-35906 is a critical command injection vulnerability in n/a, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35906 exists.

Affected product: n/a. 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-2026-35906/ (Markdown: https://insights.sbomify.com/CVE-2026-35906/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-35906
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-35906
- OSV: https://osv.dev/vulnerability/CVE-2026-35906

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-35906/
Summaries are generated and may contain mistakes; the official description above is the record.