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CVE-2026-54672— electron-updater: Uncontrolled search path elements within `AppImage` built by `app-builder-lib`

Quick assessment

Affected
electron-userland electron-builder
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Electron Userland electron-builder是Electron Userland组织的一款构建跨平台桌面应用的开发工具。 Electron Userland electron-builde存在权限许可和访问控制问题漏洞，该漏洞源于在运行时设置LD_LIBRARY_PATH环境变量时使用了空路径组件，导致当前工作目录被添加到动态链接器搜索路径，可能允许攻击者通过将恶意共享库放置在启动AppImage的目录中来执行任意代码。

CVSS 7.8 · High EPSS 0.19% · P7

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 2

VendorProduct Version RangeStatus
electron-userland app-builder-lib < 26.15.0 affected
electron-userland electron-builder < 26.15.0 affected
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I. Basic Information for CVE-2026-54672

Vulnerability Information
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Vulnerability Title
electron-updater: Uncontrolled search path elements within `AppImage` built by `app-builder-lib`
Source: CVE Program / CVE List V5
Vulnerability Description
electron-updater allows for automatic updates for Electron apps. Prior to 26.15.0, AppImage targets built by app-builder-lib could use an empty path component when setting the LD_LIBRARY_PATH environment variable at runtime. This causes the current working directory to be added to the dynamic linker search path, which may allow an attacker to execute arbitrary code by placing a malicious shared library in the directory from which the AppImage is launched. This issue has been fixed in version 26.15.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对搜索路径元素未加控制
Source: CVE Program / CVE List V5
Vulnerability Title
Electron Userland electron-builder 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Electron Userland electron-builder是Electron Userland组织的一款构建跨平台桌面应用的开发工具。 Electron Userland electron-builde存在权限许可和访问控制问题漏洞，该漏洞源于在运行时设置LD_LIBRARY_PATH环境变量时使用了空路径组件，导致当前工作目录被添加到动态链接器搜索路径，可能允许攻击者通过将恶意共享库放置在启动AppImage的目录中来执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
electron-userland electron-builder < 26.15.0 -
electron-userland app-builder-lib < 26.15.0 -

II. Public POCs for CVE-2026-54672

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8979 chars
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III. Intelligence Information for CVE-2026-54672

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Vendor Advisories for CVE-2026-54672 (1)

IV. Related Vulnerabilities

Same product: electron-builder
Same vendor: electron-userland
Same weakness: CWE-427

V. Comments for CVE-2026-54672

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