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.

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Fixes

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History

Fri, 08 May 2026 04:00:00 +0000

Type Values Removed Values Added
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.
Title Unvalidated shell.openExternal in electerm allows arbitrary protocol execution via terminal link click
Weaknesses CWE-601
CWE-88
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-08T03:01:12.461Z

Reserved: 2026-05-04T16:59:09.090Z

Link: CVE-2026-43941

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-08T04:16:23.260

Modified: 2026-05-08T04:16:23.260

Link: CVE-2026-43941

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T05:30:46Z

Weaknesses