CVEvulnerability

CVE-2021-39184

8.6 HIGH Published 2021-10-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-10-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS 3.1 ([email protected])
8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-668, CWE-862

Description

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.

Affected configurations

• electronjs electron (>= 10.1.0 < 11.5.0) • electronjs electron (>= 12.0.0 < 12.1.0) • electronjs electron (>= 13.0.0 < 13.3.0) • electronjs electron 14.0.0 • electronjs electron 15.0.0

Related

Weakness · CWE (2)

  • CWE-668 Exposure of Resource to Wrong Sphere weakness
  • CWE-862 Missing Authorization weakness

References