Bug 2495426 (CVE-2026-54672)

Summary: CVE-2026-54672 electron-updater: app-builder-lib: Electron-updater: Arbitrary code execution through AppImage library loading vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: cdrage, rhel-process-autobot, rushinde, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in electron-updater, a component used for automatic updates in Electron applications. This vulnerability arises because AppImage targets, built by app-builder-lib, incorrectly add the current working directory to the dynamic linker search path when setting the LD_LIBRARY_PATH environment variable. An attacker could exploit this by placing a malicious program in the same directory as an AppImage, which would then be executed when the AppImage is launched. This could allow the attacker to run arbitrary code on the affected system.
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Description OSIDB Bzimport 2026-06-30 23:02:52 UTC 
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.