# CVE-2026-26792: Command injection in n/a

> Attackers can execute arbitrary commands on GL-iNet routers via crafted input in the set_upgrade function parameters.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Mar 2026
- **Updated:** 14 Mar 2026
- **Also known as:** GHSA-x28p-58gf-rh8c

## What is CVE-2026-26792?

CVE-2026-26792 is a critical command injection vulnerability in n/a, published on 12 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

GL-iNet GL-AR300M16 v4.3.11 was discovered to contain multiple command injection vulnerabilities in the set_upgrade function via the modem_url, target_version, current_version, firmware_upload, hash_type, hash_value, and upgrade_type parameters. These vulnerabilities allow attackers to execute arbitrary commands via a crafted input.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2026-26792?

It affects 1 product.


Products: Gl-Inet Ar300m16 Firmware.

## How do I fix CVE-2026-26792?

No fix has been published for CVE-2026-26792 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-26792 being exploited?

There is no known exploitation of CVE-2026-26792 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2026-26791](https://insights.sbomify.com/CVE-2026-26791/): Command injection in n/a (critical 9.8)
- [CVE-2026-26793](https://insights.sbomify.com/CVE-2026-26793/): Command injection in n/a (critical 9.8)
- [CVE-2026-26795](https://insights.sbomify.com/CVE-2026-26795/): Command injection in n/a (critical 9.8)
- [CVE-2026-26794](https://insights.sbomify.com/CVE-2026-26794/): SQL injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-26792 and fix it if it is affected.

What it is: CVE-2026-26792 is a critical command injection vulnerability in n/a, published on 12 Mar 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-2026-26792 in the wild and no public exploit code.

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-2026-26792/ (Markdown: https://insights.sbomify.com/CVE-2026-26792/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-26792
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-26792
- OSV: https://osv.dev/vulnerability/CVE-2026-26792

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-26792/
Summaries are generated and may contain mistakes; the official description above is the record.