CVE-2023-44402

ASAR Integrity bypass via filetype confusion in electron

HIGH
7
CVSS Score
Published: December 1, 2023 at 09:45 PM UTC
Updated: June 17, 2026 at 06:27 AM UTC
2 products affected across 2 vendorsElectronElectron

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Severity
HIGH7
Exploit prediction
EPSS 0.2%

Description

Electron is an open source framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. This only impacts apps that have the `embeddedAsarIntegrityValidation` and `onlyLoadAppFromAsar` fuses enabled. Apps without these fuses enabled are not impacted. This issue is specific to macOS as these fuses are only currently supported on macOS. Specifically this issue can only be exploited if your app is launched from a filesystem the attacker has write access too. i.e. the ability to edit files inside the `.app` bundle on macOS which these fuses are supposed to protect against. There are no app side workarounds, you must update to a patched version of Electron.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 22.3.2423.0.0 ≤ v ≤ 23.3.1424.0.0 ≤ v ≤ 24.8.325.0.0 ≤ v ≤ 25.8.126.0.0 ≤ v ≤ 26.2.127.0.0 alpha127.0.0 alpha227.0.0 alpha327.0.0 alpha427.0.0 alpha527.0.0 alpha6
v ≤ 23.3.13v < 22.3.24v < 24.8.3v < 25.8.1v < 26.2.1v < 27.0.0-alpha.7
Affected range stops below 22.3.24, so it looks safe — our inference, not a vendor statement
Affected range stops below 24.8.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 25.8.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 26.2.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 27.0.0-alpha.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-345

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