CVE-2026-70603
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.
- CVSS 3.1
- 6.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N - EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-20, CWE-158
- Published
- Modified
- Record from
- the NVD, synced
Affected
- electronjs:electron
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5c9j-mhmv-5xgx | npm | electron | >=42.0.0-alpha.1 <42.0.0-beta.1 | 42.0.0-beta.1 |
| GHSA-5c9j-mhmv-5xgx | npm | electron | >=41.0.0-alpha.1 <41.1.1 | 41.1.1 |
| GHSA-5c9j-mhmv-5xgx | npm | electron | >=40.0.0-alpha.1 <40.9.0 | 40.9.0 |
| GHSA-5c9j-mhmv-5xgx | npm | electron | <39.8.6 | 39.8.6 |