Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Electronjs | Electron | >= 10.1.0, < 11.5.0 |
Related Weaknesses (CWE)
References
- https://github.com/electron/electron/pull/30728Third Party Advisory
- https://github.com/electron/electron/security/advisories/GHSA-mpjm-v997-c4h4MitigationThird Party Advisory
- https://github.com/electron/electron/pull/30728Third Party Advisory
- https://github.com/electron/electron/security/advisories/GHSA-mpjm-v997-c4h4MitigationThird Party Advisory
FAQ
What is CVE-2021-39184?
CVE-2021-39184 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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 r...
How severe is CVE-2021-39184?
CVE-2021-39184 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39184?
Check the references section above for vendor advisories and patch information. Affected products include: Electronjs Electron.