Electron up to 35.7.4/36.8.0/37.3.0 embeddedAsarIntegrityValidation code injection

Summaryinfo

A vulnerability labeled as critical has been found in Electron up to 35.7.4/36.8.0/37.3.0. This vulnerability affects unknown code of the component embeddedAsarIntegrityValidation/onlyLoadAppFromAsar. The manipulation results in code injection. This vulnerability is known as CVE-2025-55305. Attacking locally is a requirement. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Electron up to 35.7.4/36.8.0/37.3.0. It has been classified as critical. Affected is an unknown part of the component embeddedAsarIntegrityValidation/onlyLoadAppFromAsar. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. In versions below 35.7.5, 36.0.0-alpha.1 through 36.8.0, 37.0.0-alpha.1 through 37.3.1 and 38.0.0-alpha.1 through 38.0.0-beta.6, ASAR Integrity Bypass via resource modification. This only impacts apps that have the embeddedAsarIntegrityValidation and onlyLoadAppFromAsar fuses enabled. Apps without these fuses enabled are not impacted. This issue is fixed in versions 35.7.5, 36.8.1, 37.3.1 and 38.0.0-beta.6.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-55305 since 08/12/2025. The exploitability is told to be difficult. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

Upgrading to version 35.7.5, 36.8.1, 37.3.1 or 38.0.0-beta.6 eliminates this vulnerability. Applying the patch 23a02934510fcf951428e14573d9b2d2a3c4f28b is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• Electron

Version

• 35.7.0
• 35.7.1
• 35.7.2
• 35.7.3
• 35.7.4
• 36.0
• 36.1
• 36.2
• 36.3
• 36.4
• 36.5
• 36.6
• 36.7
• 36.8.0
• 37.0
• 37.1
• 37.2
• 37.3.0

License

• open-source

Website

• Product: https://github.com/electron/electron/

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