Command Injection Affecting electerm package, versions <3.11.11
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-ELECTERM-17812773
- published4 Jul 2026
- disclosed2 Jul 2026
- creditUnknown
Introduced: 2 Jul 2026
NewCVE-2026-49255 (opens in a new tab)How to fix?
Upgrade electerm to version 3.11.11 or higher.
Overview
electerm is an open-sourced terminal/ssh/telnet/serialport/sftp client
Affected versions of this package are vulnerable to Command Injection via the rmrf, mv, and cp functions. An attacker can execute arbitrary commands by supplying specially crafted file names containing shell metacharacters, which are interpolated directly into shell command strings without proper sanitization. This can occur when connecting to a malicious SSH/SFTP server that presents files with crafted names, leading to command execution on the victim's system when file operations are performed.
Workaround
This vulnerability can be mitigated by only connecting to trusted SSH/SFTP servers, avoiding remote-to-local file transfers from untrusted sources, not using the "rename on conflict" option when downloading folders from untrusted servers, and manually verifying filenames before performing file operations.