CVE-2026-86711

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.

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