# CVE-2026-94490: OctoPrint command injection in Command API

Source: https://junglewise.ai/threats/cve-2026-94490-a-security-flaw-has-been-discovered-in-octoprint-1-0-0-affected  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-22. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-94490 · Severity: medium · CVSS 4.7 · Published 2026-09-22

OctoPrint is a web interface for 3D printer control. A flaw in the Command API allows remote attackers to inject arbitrary operating system commands by manipulating the command argument, potentially leading to full system compromise of the machine running OctoPrint.

Technologies: [OctoPrint](https://junglewise.ai/threats/technologies/octoprint-octoprint). Vendors: [OctoPrint](https://junglewise.ai/threats/vendors/octoprint).

## Quick answers

**Is CVE-2026-94490 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-94490 being exploited in the wild.

**How severe is CVE-2026-94490?** Medium severity, with a CVSS score of 4.7, published 22 September 2026.

**Which products and versions are affected?** OctoPrint 1.0.0.

**Is there a fix for CVE-2026-94490?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-94490 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-94490?** Check whether you run OctoPrint at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The executeSystemCommand function in src/octoprint/server/api/system.py fails to properly sanitize the command parameter, allowing OS command injection. The vulnerability is remotely exploitable without authentication and has been publicly disclosed, though no exploitation in the wild has been confirmed. Vendor has not responded to disclosure attempts.

## Affected products

- OctoPrint OctoPrint 1.0.0

## Timeline

- 2026-09-22: disclosed
- other: Public exploit released

## References

- [https://vuldb.com/cve/CVE-2026-94490](https://vuldb.com/cve/CVE-2026-94490)
- [https://vuldb.com/submit/895339](https://vuldb.com/submit/895339)

## Related threats

- [OctoPrint stored XSS in connection parameters](https://junglewise.ai/threats/cve-2026-123364-octoprint-provides-a-web-interface-for-controlling-consumer-3d)
- [OctoPrint hard-coded cryptographic key in Flask secret key handler](https://junglewise.ai/threats/cve-2014-125135-a-security-vulnerability-has-been-detected-in-octoprint-1-0-0-1)
- [OctoPrint API key information disclosure in settings endpoint](https://junglewise.ai/threats/cve-2013-10077-a-weakness-has-been-identified-in-octoprint-1-0-0-this-impacts)
- [OctoPrint path traversal in File Download API](https://junglewise.ai/threats/cve-2026-94489-a-vulnerability-was-identified-in-octoprint-1-0-0-affected-by)