CVE-2026-73224 Electerm check folder size function may get attacked by unsafe folder name
A malicious FTP or SFTP server can execute arbitrary commands on the user's machine via a crafted folder name during size calculation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-73224?
CVE-2026-73224 is a high-severity command injection vulnerability in electerm, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.15.120, electerm allows a malicious FTP or SFTP server to execute arbitrary commands when a user downloads a crafted folder and invokes Properties and Calculate Size because calcLocal in src/client/components/sftp/file-info-modal.jsx inserts the server-controlled folder name into a du -sh shell command without safely escaping single quotes. This issue is fixed in version 3.15.120.
Weakness: CWE-78
Which versions are affected by CVE-2026-73224?
How do I fix CVE-2026-73224?
No fix has been published for CVE-2026-73224 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-73224 being exploited?
There is no known exploitation of CVE-2026-73224 in the wild and no public exploit code.
Sources
Also known as GHSA-4wx8-4m69-8rw5.