electerm: Command Injection in File System Operations (rmrf, mv, cp)

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.11.11, electerm constructs operating system commands in src/app/lib/fs.js by interpolating untrusted file paths into the rmrf(), mv(), and cp() functions. A malicious SSH or SFTP server can provide a filename containing quote characters and shell metacharacters, and a victim can cause that filename to reach the affected operation during remote-to-local transfer, conflict renaming, copying, moving, or removal. The generated `rm -rf`, mv, `cp -r`, PowerShell Remove-Item, Move-Item, or Copy-Item command can then interpret the filename as shell syntax. This allows arbitrary command execution with the electerm desktop user's privileges on POSIX and Windows systems, enabling data exfiltration, file modification, malware installation, or denial of service. This issue is fixed in version 3.11.11.

Source published

19 Aug 2026 14:30:12 UTC

Source modified

25 Aug 2026 02:04:00 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

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CVSS 3.1 · 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.11.11, electerm constructs operating system commands in src/app/lib/fs.js by interpolating untrusted file paths into the rmrf(), mv(), and cp() functions. A malicious SSH or SFTP server can provide a filename containing quote characters and shell metacharacters, and a victim can cause that filename to reach the affected operation during remote-to-local transfer, conflict renaming, copying, moving, or removal. The generated `rm -rf`, mv, `cp -r`, PowerShell Remove-Item, Move-Item, or Copy-Item command can then interpret the filename as shell syntax. This allows arbitrary command execution with the electerm desktop user's privileges on POSIX and Windows systems, enabling data exfiltration, file modification, malware installation, or denial of service. This issue is fixed in version 3.11.11.

Source published

Aug 19, 2026, 2:30:12 PM (timezone not stated)

Source modified

Aug 25, 2026, 2:04:00 AM (timezone not stated)

Observed here

30 Oct 2026 08:52:25 UTC

Source terms

ENISA EUVD · source terms and attribution apply

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.11.11, electerm constructs operating system commands in src/app/lib/fs.js by interpolating untrusted file paths into the rmrf(), mv(), and cp() functions. A malicious SSH or SFTP server can provide a filename containing quote characters and shell metacharacters, and a victim can cause that filename to reach the affected operation during remote-to-local transfer, conflict renaming, copying, moving, or removal. The generated `rm -rf`, mv, `cp -r`, PowerShell Remove-Item, Move-Item, or Copy-Item command can then interpret the filename as shell syntax. This allows arbitrary command execution with the electerm desktop user's privileges on POSIX and Windows systems, enabling data exfiltration, file modification, malware installation, or denial of service. This issue is fixed in version 3.11.11.

Source published

19 Aug 2026 15:17:06 UTC

Source modified

27 Oct 2026 13:10:00 UTC

Observed here

27 Oct 2026 13:11:53 UTC

Source terms

NIST NVD usage terms; underlying source attribution retained

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CVSS 3.1 · [email protected] · Secondary · 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

### Impact A command injection vulnerability exists in electerm's file system operations (`rmrf`, `mv`, `cp`) in `src/app/lib/fs.js`. These functions construct shell commands by interpolating file paths directly into command strings without escaping shell metacharacters. **Vulnerable functions:** - `rmrf()` - Uses `rm -rf "${path}"` (double quotes, vulnerable to `"` injection) - `mv()` - Uses `mv '${from}' '${to}'` (single quotes, vulnerable to `'` injection) - `cp()` - Uses `cp -r "${from}" "${to}"` (double quotes, vulnerable to `"` injection) **Attack scenario:** 1. Attacker controls a malicious SSH/SFTP server 2. Server lists files with shell metacharacters in names (e.g., `file"$(touch /tmp/pwned)"`) 3. Victim connects to the server and performs file operations (remote-to-local transfer, rename on conflict, etc.) 4. The malicious filename is passed to `rmrf()`, `mv()`, or `cp()` without sanitization 5. Shell metacharacters break out of the quoted argument and execute arbitrary commands **Impact includes:** - Arbitrary command execution as the electerm desktop user - Data exfiltration, malware installation, or system compromise - Both POSIX (bash) and Windows (PowerShell) platforms are affected ### Patches - https://github.com/electerm/electerm/commit/aa778818843b9c083bd711cd04644d102fcb5a42 ### Workarounds If upgrading is not immediately possible, users can mitigate this vulnerability by: 1. Only connecting to trusted SSH/SFTP servers 2. Avoiding remote-to-local file transfers from untrusted sources 3. Not using the "rename on conflict" option when downloading folders from untrusted servers 4. Manually verifying filenames before performing file operations

Source published

2 Jul 2026 19:22:31 UTC

Source modified

2 Jul 2026 19:41:33 UTC

Observed here

24 Oct 2026 13:17:17 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Publisher rating · HIGH