CVE-2026-43941
Critical · 9.6CVSS
9.6
EPSS
0.5%
Published
May 8, 2026
CISA due date
—
The record
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. In versions 3.8.15 and prior, Electerm's terminal hyperlink handler passes any URL clicked in the terminal directly to shell.openExternal without any protocol validation. An attacker who controls terminal output (e.g., via a malicious SSH server, compromised remote host, or malicious plugin rendering terminal content) can thus achieve arbitrary code execution or local file access on the victim's machine, requiring only that the victim clicks a displayed link. At time of publication, there are no publicly available patches.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | electerm | 0 | No fix |
Related vulnerabilities
- GHSA-fwf6-j56g-m97c Electerm has an unvalidated shell.openExternal that allows arbitrary protocol execution… Same vulnerability
- CVE-2026-45353 electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Also affects electerm
- CVE-2026-45787 electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Also affects electerm
- CVE-2026-45058 electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Also affects electerm
- GHSA-g29v-q6h7-76wh electerm's encrypt method not safe enough Also affects electerm
- GHSA-7p5m-v798-f8vv Electerm Local code through electerm's single-instance socket Also affects electerm
- GHSA-jgg9-rw32-44pj Electerm: Importing unsafe bookmark data could lead to unsafe operation when clicking… Also affects electerm
- GHSA-mpm8-cx2p-626q Electerm users can run dangrous code through link or command line Also affects electerm