Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 40.9.3, 41.4.0, and 42.0.0, a custom scheme registered with supportFetchAPI: true but without corsEnabled: true was not subject to CORS enforcement. A page loaded from a remote origin could therefore fetch() or XMLHttpRequest that scheme cross-origin and read the full response body, rather than the read being blocked. Apps that serve sensitive data from such a scheme and load remote or untrusted content in a renderer are affected. This issue is fixed in versions 39.8.10, 40.9.3, 41.4.0, and 42.0.0.
Severity (CVSS)
| Base score | 7.4 |
|---|---|
| Severity | High |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N |
| Provided by | CNA |
Weaknesses
- CWE-942 — CWE-942: Permissive Cross-domain Policy with Untrusted Domains
Affected products
| Vendor | Product | Versions |
|---|---|---|
| electron | electron | < 39.8.10; >= 40.0.0-alpha.1, < 40.9.3; >= 41.0.0-alpha.1, < 41.4.0; >= 42.0.0-alpha.1, < 42.0.0 |
References
- https://github.com/electron/electron/security/advisories/GHSA-v3j7-r9gq-3gjw (x_refsource_CONFIRM)
Generated from the official CVE List on 06 Aug 2026 07:06 UTC.