Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Electerm Project | Electerm | <= 3.8.15 |
Related Weaknesses (CWE)
References
- https://github.com/electerm/electerm/security/advisories/GHSA-fwf6-j56g-m97cVendor AdvisoryMitigation
FAQ
What is CVE-2026-43941?
CVE-2026-43941 is a vulnerability with a CVSS score of 9.6 (CRITICAL). 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 dir...
How severe is CVE-2026-43941?
CVE-2026-43941 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-43941?
Check the references section above for vendor advisories and patch information. Affected products include: Electerm Project Electerm.