CVE-2026-34778
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Electron: Service worker can spoof executeJavaScript IPC replies
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0, a service worker running in a session could spoof reply messages on the internal IPC channel used by webContents.executeJavaScript() and related methods, causing the main-process promise to resolve with attacker-controlled data. Apps are only affected if they have service workers registered and use the result of webContents.executeJavaScript() (or webFrameMain.executeJavaScript()) in security-sensitive decisions. This issue has been patched in versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
electron
- Vendor
- electron
- Product
- electron
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 38.8.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 39.0.0-alpha.1, < 39.8.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 40.0.0-alpha.1, < 40.8.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 41.0.0-alpha.1, < 41.0.0 | affected | Unavailable | Unavailable | Unavailable | None listed |