CVE-2021-39184
6.8 MEDIUMElectron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS
Published: 2021-10-12 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 6.8 MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- CWE
- CWE-668, CWE-862
Affected products
| Vendor | Product |
|---|---|
| electronjs | electron |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-39184
- [Other]https://github.com/electron/electron/pull/30728
- [Other]https://github.com/electron/electron/security/advisories/GHSA-mpjm-v997-c4h4
- [Other]https://github.com/electron/electron/pull/30728
- [Other]https://github.com/electron/electron/security/advisories/GHSA-mpjm-v997-c4h4
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- CVE-2026-34769 — Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS (7.7 HIGH)
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