CVE-2021-39184
CVE-2021-39184 · Sandboxed renderers can obtain thumbnails of arbitrary files through the nativeImage API
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. A vulnerability in versions prior to 11.5.0, 12.1.0, and 13.3.0 allows a sandboxed renderer to request a "thumbnail" image of an arbitrary file on the user's system. The thumbnail can potentially include significant parts of the original file, including textual data in many cases. Versions 15.0.0-alpha.10, 14.0.0, 13.3.0, 12.1.0, and 11.5.0 all contain a fix for the vulnerability. Two workarounds aside from upgrading are available. One may make the vulnerability significantly more difficult for an attacker to exploit by enabling `contextIsolation` in one's app. One may also disable the functionality of the `createThumbnailFromPath` API if one does not need it.
CVSS 6.8 · Medium · EPSS 1.1% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
electron
- Versions
- < 11.5.0: Affected
- >= 12.0.0, < 12.1.0: Affected
- >= 13.0.0, < 13.3.0: Affected
No fix published
electron npm
- Affected ranges
- SEMVER: < 11.5.0
Update to 11.5.0
electron npm
- Affected ranges
- SEMVER: ≥ 12.0.0, < 12.1.0
Update to 12.1.0
electron npm
- Affected ranges
- SEMVER: ≥ 13.0.0, < 13.3.0
Update to 13.3.0