CVE-2026-70603
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
electronnpm | >= 42.0.0-alpha.1, < 42.0.0-beta.1 | 42.0.0-beta.1 |
electronnpm | >= 41.0.0-alpha.1, < 41.1.1 | 41.1.1 |
electronnpm | >= 40.0.0-alpha.1, < 40.9.0 | 40.9.0 |
electronnpm | < 39.8.6 | 39.8.6 |
Affected products
9cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*+ 7 more
- cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*range: <39.8.6
- cpe:2.3:a:electronjs:electron:42.0.0:alpha1:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:42.0.0:alpha2:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:42.0.0:alpha3:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:42.0.0:alpha4:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:42.0.0:alpha5:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:42.0.0:alpha6:*:*:*:node.js:*:*
- cpe:2.3:a:electronjs:electron:42.0.0:beta1:*:*:*:node.js:*:*
- Range: <39.8.6, <40.9.0, <41.1.1, <42.0.0-beta.1
Patches
Vulnerability mechanics
References
2- github.com/advisories/GHSA-5c9j-mhmv-5xgxghsaADVISORY
- github.com/electron/electron/security/advisories/GHSA-5c9j-mhmv-5xgxnvdVendor AdvisoryWEB
News mentions
1- Electron Framework: 16 Vulnerabilities Disclosed, Including Sandbox Bypass and Prototype PollutionVypr Intelligence · Aug 5, 2026