CVE-2026-45353

electerm: Local code through electerm's single-instance socket

9.3 CriticalFix available

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. From 3.0.6 to 3.8.8, This vulnerability is fixed in 3.9.0.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.11%Up 0.1 points since May 29, 2026

What each source reports

CVE List Score used 9.3

electerm: Local code through electerm's single-instance socket

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. From 3.0.6 to 3.8.8, This vulnerability is fixed in 3.9.0.

Record: CVE-2026-45353
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Weakness: CWE-94, CWE-732, CWE-940
Updated: 2026-11-02

EUVDEUVD-2026-32960 9.3

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. From 3.0.6 to 3.8.8, This vulnerability is fixed in 3.9.0.

Record: EUVD-2026-32960
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-7p5m-v798-f8vv 9.3

Electerm Local code through electerm's single-instance socket

Impact

Local code execution without UI interaction: any same-user process can send a JSON payload to electerm's single-instance socket/pipe, causing the app to create tabs and potentially spawn attacker-controlled local processes. Affects electerm single-instance installs on the machine.

Patches

https://github.com/electerm/electerm/commit/0599e67069b00e376a2e962649aaad6096e63507

Workarounds

Do not run unsafe command

References

Report / credit: https://github.com/Curly-Haired-Baboon
Electerm releases: https://github.com/electerm/electerm/releases

Record: GHSA-7p5m-v798-f8vv
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-94, CWE-732, CWE-940
Updated: 2026-11-02

NVD 9.3

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. From 3.0.6 to 3.8.8, This vulnerability is fixed in 3.9.0.

Record: CVE-2026-45353
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-94, CWE-732, CWE-940
Updated: 2026-11-02

OSV 9.3

electerm: Local code through electerm's single-instance socket

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. From 3.0.6 to 3.8.8, This vulnerability is fixed in 3.9.0.

Record: CVE-2026-45353
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Weakness: CWE-732, CWE-94, CWE-940
Updated: 2026-11-02

OSVGHSA-7p5m-v798-f8vv 9.3

Electerm Local code through electerm's single-instance socket

Impact

Patches

https://github.com/electerm/electerm/commit/0599e67069b00e376a2e962649aaad6096e63507

Workarounds

Do not run unsafe command

References

Report / credit: https://github.com/Curly-Haired-Baboon
Electerm releases: https://github.com/electerm/electerm/releases

Record: GHSA-7p5m-v798-f8vv
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-732, CWE-94, CWE-940
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`electerm` npm	3.0.6 to 3.8.8	3.9.0
`electerm` npm	3.0.6 up to 3.9.0	3.9.0

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-45353 is a critical vulnerability (CVSS 9.3) in Electerm, published May 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. Fixed in electerm 3.9.0.