CVE-2026-43940

描述

### Impact The `runWidget` function in `src/app/widgets/load-widget.js` constructs a file path by directly concatenating user‑supplied widget identifiers without any sanitisation: ```javascript const file = `widget-${widgetId}.js` const widget = require(path.join(__dirname, file)) ``` Because `runWidget` is exposed to the renderer process via an asynchronous IPC handler with no input validation, an attacker who achieves JavaScript execution inside the renderer (for example, through a malicious plugin or a cross‑site scripting flaw in the built‑in webview) can abuse a **path traversal** (`../`) to load and execute an arbitrary JavaScript file anywhere on the victim’s filesystem. This gives the attacker local code execution with the full privileges of the electerm process, leading to complete system compromise. ### Patches Fixed in version >= 3.7.16 ### Workarounds Until a patch is released: - Do not install or run untrusted plugins. - Avoid loading arbitrary web content inside electerm’s embedded webview (for example, disable any features that fetch and display remote HTML). - Run electerm in a sandboxed environment (e.g., with `bubblewrap` on Linux, AppArmor/SELinux profiles, or Windows sandboxed app execution) to limit the impact of any code execution. ### Resources - [electerm GitHub Repository](https://github.com/electerm/electerm) - [electerm Security Policy](https://github.com/electerm/electerm/security) - Vulnerability details originally reported by external researcher (PoC confirmed on v3.7.9, Win10).

如何修補 CVE-2026-43940

要修補 CVE-2026-43940,請將受影響套件升級到下列已修補版本。

• —升級至 3.7.16 或更新版本

CVE-2026-43940 正在被利用嗎?

低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 3.7.16

CVSS 分數