# CVE-2026-92993: Dromara mayfly-go OS command injection in machine script

Source: https://junglewise.ai/threats/cve-2026-92993-dromara-mayfly-go-os-command-injection-in-machine-script  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-17. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-92993 · Severity: medium · CVSS 6.3 · Published 2026-09-17

mayfly-go is a browser-based management platform for servers, databases, and infrastructure. An attacker with limited script-execution permissions can inject arbitrary operating system commands through template parameters, gaining complete command execution on managed machines. This allows unauthorized access to systems and data that the attacker should not be able to reach.

Vendors: [Dromara](https://junglewise.ai/threats/vendors/dromara).

## Quick answers

**Is CVE-2026-92993 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-92993 being exploited in the wild.

**How severe is CVE-2026-92993?** Medium severity, with a CVSS score of 6.3, published 17 September 2026.

**Which products and versions are affected?** Dromara Mayfly-Go up to 1.11.5.

**Is there a fix for CVE-2026-92993?** 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-2026-92993 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-92993?** Check whether you run Dromara Mayfly-Go 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 vulnerability is an OS command injection (CWE-78) in the RunMachineScript function (server/internal/machine/api/machine_script.go). User-supplied parameters are substituted directly into Go text/template shells without sanitization and then executed over SSH. An attacker with machine:script:run permission and tag access can craft malicious parameter values containing shell metacharacters to break out of the template context and execute arbitrary commands. The SSH execution layer (Cli.Run) applies no input filtering. No authentication bypass is required beyond basic account access; exploitation is remote and a public proof-of-concept is available.

## Affected products

- Dromara mayfly-go up to 1.11.5

## Timeline

- 2026-09-17: disclosed: CVE-2026-92993 published
- 2026-08-21: other: Vendor contacted privately; no response

## References

- [https://gist.github.com/xufengnian/b95662ba0d8881cfc5ba0bb99cbfc086](https://gist.github.com/xufengnian/b95662ba0d8881cfc5ba0bb99cbfc086)
- [https://github.com/dromara/mayfly-go/](https://github.com/dromara/mayfly-go/)

## Related threats

- [Dromara mayfly-go missing authorization in AI Assistant](https://junglewise.ai/threats/cve-2026-92992-dromara-mayfly-go-missing-authorization-in-ai-assistant)