Staging Environment: Content and features may be unstable or change without notice.
Advisory details: vulnrichment / CVE-2026-43941
Advisory ID vulnrichment/CVE-2026-43941
Aliases
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
System Score Found at
cvssv3.1 9.6
ssvc Track
Reference id Reference type URL
GHSA-fwf6-j56g-m97c Other https://github.com/electerm/electerm/security/advisories/GHSA-fwf6-j56g-m97c
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Found at None
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-08T14:34:47Z/ Found at None

Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-08T14:34:47Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/43xxx/CVE-2026-43941.json

Source Advisory: vulnrichment/CVE-2026-43941

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]