CVE-2026-34781
CVE-2026-34781 · Electron crashes in clipboard.readImage() on malformed clipboard image data
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5, apps that call clipboard.readImage() may be vulnerable to a denial of service. If the system clipboard contains image data that fails to decode, the resulting null bitmap is passed unchecked to image construction, triggering a controlled abort and crashing the process. Apps are only affected if they call clipboard.readImage(). Apps that do not read images from the clipboard are not affected. This issue does not allow memory corruption or code execution. This vulnerability is fixed in 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5.
CVSS 2.8 · Low · EPSS 0.1% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
electron
- Versions
- < 39.8.5: Affected
- >= 40.0.0-alpha.1, < 40.8.5: Affected
- >= 41.0.0-alpha.1, < 41.1.0: Affected
- >= 42.0.0-alpha.1, < 42.0.0-alpha.5: Affected
No fix published
electron npm
- Affected ranges
- SEMVER: < 39.8.5
Update to 39.8.5
electron npm
- Affected ranges
- SEMVER: ≥ 40.0.0-alpha.1, < 40.8.5
Update to 40.8.5
electron npm
- Affected ranges
- SEMVER: ≥ 41.0.0-alpha.1, < 41.1.0
Update to 41.1.0
electron npm
- Affected ranges
- SEMVER: ≥ 42.0.0-alpha.1, < 42.0.0-alpha.5
Update to 42.0.0-alpha.5