# CVE-2026-19681: Command Injection

> Authenticated attackers can execute arbitrary OS commands via crafted file uploads in Tenable Security Center.

- **Severity:** Critical 9.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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:** 14 Aug 2026
- **Updated:** 15 Aug 2026
- **Also known as:** GHSA-qx78-w9jf-gv53

## What is CVE-2026-19681?

CVE-2026-19681 is a critical command injection vulnerability in Tenable, Inc. Security Center, published on 14 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An authenticated command injection vulnerability exists in Security Center related to file upload processing. An attacker could exploit this issue by uploading a specially crafted file, potentially resulting in arbitrary command execution on the underlying operating system.

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

## Which versions are affected by CVE-2026-19681?

It affects 1 product.


Products: Tenable Security Center.

## How do I fix CVE-2026-19681?

No fix has been published for CVE-2026-19681 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-19681 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19681 exists.

Public exploit code:

- Tenable Security Center SCAP Audit File Command Injection (metasploit)
- https://github.com/h00die/POC-CVE-2026-19681 (github_poc): https://github.com/h00die/POC-CVE-2026-19681

## Other vulnerabilities in Tenable, Inc. Security Center

- [CVE-2026-19626](https://insights.sbomify.com/CVE-2026-19626/): Remote Code Execution (critical 9.4)
- [CVE-2026-19682](https://insights.sbomify.com/CVE-2026-19682/): Command Injection (critical 9.4)
- [CVE-2026-64877](https://insights.sbomify.com/CVE-2026-64877/): SQL injection in Security Center (critical 9.4)
- [CVE-2026-64878](https://insights.sbomify.com/CVE-2026-64878/): Command Injection (critical 9.4)
- [CVE-2026-64879](https://insights.sbomify.com/CVE-2026-64879/): Command Injection (critical 9.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-19681 and fix it if it is affected.

What it is: CVE-2026-19681 is a critical command injection vulnerability in Tenable, Inc. Security Center, published on 14 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19681 exists.

Affected product: Tenable, Inc. Security Center. 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-2026-19681/ (Markdown: https://insights.sbomify.com/CVE-2026-19681/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-19681
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19681
- OSV: https://osv.dev/vulnerability/CVE-2026-19681

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-19681/
Summaries are generated and may contain mistakes; the official description above is the record.