What’s Vulnerable › Vulnerabilities

CVE-2026-86711: electerm before 5.3.15 Arbitrary Command Execution via Unvalidated runGlobalAsync IPC Bridge

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-08 · updated 2026-09-08
• Weakness: CWE-749

Description

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.

Affected products

• electerm: before 5.3.15 — fixed in 5.3.15

How to fix

Upgrade to a fixed version: electerm 5.3.15. Check the vendor advisory for mitigations.

References

• https://github.com/electerm/electerm
• https://github.com/electerm/electerm/blob/v5.3.5/src/app/lib/ipc.js
• https://github.com/electerm/electerm/commit/b1f880534b8ae066c5d25bbf291ca7437e052750
• https://github.com/electerm/electerm/issues/4509
• https://github.com/electerm/electerm/releases/tag/v5.3.15
• https://github.com/electerm/electerm/security/advisories/GHSA-qc8j-6jr2-qr32
• https://www.vulncheck.com/advisories/electerm-before-5.3.15-arbitrary-command-execution-via-unvalidated-runglobalasync-ipc-bridge

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