CVE-2026-43940— electerm runWidget路径遍历导致远程代码执行漏洞
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一、 漏洞 CVE-2026-43940 基础信息
漏洞信息
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Vulnerability Title
electerm: Path traversal in electerm runWidget leads to arbitrary code execution
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to version 3.7.16, the runWidget function in src/app/widgets/load-widget.js constructs a file path by directly concatenating user‑supplied widget identifiers without any sanitisation. 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. This issue has been patched in version 3.7.16.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: 美国国家漏洞数据库 NVD
受影响产品
二、漏洞 CVE-2026-43940 的公开POC
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- Release v3.7.16 · electerm/electerm · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-43940
IV. Related Vulnerabilities
V. Comments for CVE-2026-43940
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