---
title: "CVE-2026-41500: electerm: electerm_install_script_CommandInjection Vulnerability Report"
url: https://erroneo.us/security/cve/CVE-2026-41500/
description: "CVE-2026-41500 (electerm (npm)): electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to version 3.3.8, a command…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-05-08
date_modified: 2026-05-11
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-41500"
kev: false
cvss: 9.8
epss: 0.02491
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-41500: electerm: electerm_install_script_CommandInjection Vulnerability Report

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 2.5% , percentile 85: FIRST’s model estimates a 2.5% chance of exploitation activity in the next 30 days, higher than 85% of all scored CVEs (elevated). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes electerm (npm) < 3.3.8, fixed in 3.3.8 . Check your lockfile, including transitive dependencies.

## What it is

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to version 3.3.8, a command injection vulnerability exists in github.com/elcterm/electerm/npm/install.js:150. The runMac() function appends attacker-controlled remote releaseInfo.name directly into an exec("open ...") command without validation. This issue has been patched in version 3.3.8.

## Affected packages

- npm `electerm` < 3.3.8 → fixed: 3.3.8

## Affected products (CVE record)

- electerm electerm: < 3.3.8

## Severity

- GitHub_M CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 2.49% probability of exploitation activity in the next 30 days; percentile 85.

## Sources

- [GitHub Advisory GHSA-wxw2-rwmh-vr8f](https://github.com/advisories/GHSA-wxw2-rwmh-vr8f)
- [CVE.org record CVE-2026-41500](https://www.cve.org/CVERecord?id=CVE-2026-41500)
- [NVD entry CVE-2026-41500](https://nvd.nist.gov/vuln/detail/CVE-2026-41500)
- [github.com](https://github.com/electerm/electerm/security/advisories/GHSA-wxw2-rwmh-vr8f)
- [github.com](https://github.com/electerm/electerm/commit/59708b38c8a52f5db59d7d4eff98e31d573128ee)
- [github.com](https://github.com/electerm/electerm/releases/tag/v3.3.8)

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Source page: https://erroneo.us/security/cve/CVE-2026-41500/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt