---
id: CVE-2026-86711
title: >-
  electerm before 5.3.15 exposes 40+ main-process functions through an
  unvalidated Electron IPC handler with no function-name allowlist or sender
  validation
summary: >-
  electerm before 5.3.15 exposes 40+ main-process functions through an
  unvalidated Electron IPC handler with no function-name allowlist or sender
  validation. Renderer-side script execution can invoke openFileWithEditor and
  other functions …
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-749
vendor: electerm
product: electerm
affected:
  - electerm < 5.3.15
published: '2026-09-08'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:56:50.950'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86711'
references:
  - url: 'https://github.com/electerm/electerm'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/electerm/electerm/blob/v5.3.5/src/app/lib/ipc.js'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/electerm/electerm/commit/b1f880534b8ae066c5d25bbf291ca7437e052750
    label: disclosure@vulncheck.com
  - url: 'https://github.com/electerm/electerm/issues/4509'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/electerm/electerm/releases/tag/v5.3.15'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/electerm/electerm/security/advisories/GHSA-qc8j-6jr2-qr32
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/electerm-before-5.3.15-arbitrary-command-execution-via-unvalidated-runglobalasync-ipc-bridge
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-08T12:17:21.327129Z'
ingestedAt: '2026-09-08T15:33:26.983Z'
epss: 0.00183
epssPercentile: 0.07015
---

## Overview

electerm before 5.3.15 exposes 40+ main-process functions through an unvalidated Electron IPC handler with no function-name allowlist or sender validation. Renderer-side script execution can invoke openFileWithEditor and other functions with arbitrary arguments to execute system commands in the main process.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.