# CVE-2026-73224: electerm shell injection in folder size calculation

Source: https://junglewise.ai/threats/cve-2026-73224-electerm-shell-injection-in-folder-size-calculation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-11. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-73224 · Severity: high · CVSS 8.8 · Published 2026-08-11

electerm is an open-source terminal and file transfer client used to manage remote systems via SSH, SFTP, FTP, and other protocols. A malicious FTP or SFTP server can execute arbitrary commands on a user's system when the user downloads a crafted folder, views its properties, and selects "Calculate Size"—allowing attackers to gain code execution with the privileges of the user running electerm.

## Quick answers

**Is CVE-2026-73224 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-73224 being exploited in the wild.

**How severe is CVE-2026-73224?** High severity, with a CVSS score of 8.8, published 11 August 2026.

**Which products and versions are affected?** electerm electerm before 3.15.120.

**Is there a fix for CVE-2026-73224?** A patch was published on 2026-07-11: version 3.15.120 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-73224 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-73224?** Check whether anything you run is named in the advisory. 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 a shell injection flaw in the file-info-modal.jsx component's calcLocal function. When calculating folder sizes, the application constructs a shell command using the server-controlled folder name without properly escaping special characters, particularly single quotes. An attacker controlling an FTP or SFTP server can craft a folder name containing shell metacharacters to break out of the du -sh command and inject arbitrary commands. The attack requires user interaction (downloading the folder and invoking the Properties/Calculate Size function) but no authentication. The vulnerability was fixed in version 3.15.120 by safely parsing and escaping the filename before constructing the shell command.

## Affected products

- electerm electerm before 3.15.120

## Timeline

- 2026-08-11: disclosed
- 2026-07-11: patched: version 3.15.120 released

## References

- [https://github.com/electerm/electerm/commit/36b16fb66936bb7c65fbcdf706dfd1b77f0750a7](https://github.com/electerm/electerm/commit/36b16fb66936bb7c65fbcdf706dfd1b77f0750a7)
- [https://github.com/electerm/electerm/releases/tag/v3.15.120](https://github.com/electerm/electerm/releases/tag/v3.15.120)