CVE-2026-70603
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | electron | >= 42.0.0-alpha.1, < 42.0.0-beta.1 | 42.0.0-beta.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Electronjs | Electron | before 39.8.6 from 40.0.0 before 40.9.0 from 41.0.0 before 41.1.1 Version 42.0.0 |