What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.8 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: yes
• Published: 2026-06-30 · updated 2026-08-18
• Weakness: CWE-427

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.

Affected products

• electron-userland electron-builder: before 26.15.0 — fixed in 26.15.0

How to fix

Upgrade to a fixed version: electron-userland electron-builder 26.15.0. Check the vendor advisory for mitigations.

References

• https://github.com/electron-userland/electron-builder/commit/01b8ba979
• https://github.com/electron-userland/electron-builder/security/advisories/GHSA-7g7r-gx96-252g

Get alerted when CVE-2026-54672 or the next vulnerability affects your stack