Is CVE-2021-39184 actively exploited?

CVE-2021-39184 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-39184?

CVE-2021-39184 has a CVSS score of 6.8 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N.

How do I patch CVE-2021-39184?

Patch guidance is available from electronjs security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-39184.

CVE-2021-39184 - remediation guidance & executive summary

Q: Which products are affected by CVE-2021-39184?

37 products: electronjs electron, electronjs electron, electronjs electron, electronjs electron, electronjs electron, and 32 more.

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 Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: changed
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-668 CWE-862 · Missing Authorization

Metadata

Primary Vendor: ELECTRONJS
Published: 10/12/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

electronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electronelectronjs : electron

Remediation Guidance

Executive Summary

Cite this page

CVE-2021-39184. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2021-39184

View on NIST NVD

CVE-2021-39184 vulnerability