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CVE-2026-70603

Electron: shell.openPath path validation bypass via embedded null byte

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.6, 40.9.0, 41.1.1, and 42.0.0-beta.1, shell.openPath() did not reject paths containing embedded null bytes. Apps that perform string-only validation of file paths, for example checking the file extension, before passing them to shell.openPath() could be bypassed, allowing an attacker-controlled path to open a different file than the one that passed validation. Apps are only affected if they pass paths derived from untrusted input to shell.openPath() and rely on string-based validation without a filesystem check. This issue is fixed in versions 39.8.6, 40.9.0, 41.1.1, and 42.0.0-beta.1.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Electronjs ≫ Electron SwPlatform node.js Version < 39.8.6
Electronjs ≫ Electron SwPlatform node.js Version >= 40.0.0 < 40.9.0
Electronjs ≫ Electron SwPlatform node.js Version >= 41.0.0 < 41.1.1
Electronjs ≫ Electron Version 42.0.0 Update alpha1 SwPlatform node.js
Electronjs ≫ Electron Version 42.0.0 Update alpha2 SwPlatform node.js
Electronjs ≫ Electron Version 42.0.0 Update alpha3 SwPlatform node.js
Electronjs ≫ Electron Version 42.0.0 Update alpha4 SwPlatform node.js
Electronjs ≫ Electron Version 42.0.0 Update alpha5 SwPlatform node.js
Electronjs ≫ Electron Version 42.0.0 Update alpha6 SwPlatform node.js
Electronjs ≫ Electron Version 42.0.0 Update beta1 SwPlatform node.js
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.1% 0.01
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 6 0.8 5.2
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
CWE-158 Improper Neutralization of Null Byte or NUL Character

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component.

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

https://github.com/electron/electron/security/advisories/GHSA-5c9j-mhmv-5xgx
Vendor Advisory