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Vulnerabilities

Vulnerability · CVE-2026-102674

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS.

Published Sep 29, 2026 · catalog updated Oct 15, 2026 · Electron is a framework

Check if you run it

No confirmed exploitation is on record for CVE-2026-102674. EPSS is 0.24%. Act only if a listed version of Electron is a framework is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Electron is a framework).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.24%
Remediation
Advisory link
Affected products
cpe electronjs/electron

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, windows opened from a sandboxed top-level document did not inherit that document's active HTML sandbox restrictions. Untrusted content in a sandboxed top-level document that was permitted to open popups could therefore create a window with the Electron application's full origin instead of the restricted origin intended by the sandbox. Applications that deny such popups with setWindowOpenHandler are not affected. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe electronjs/electron44.0.0

How to fix CVE-2026-102674

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-102674. EPSS is 0.24%. Act only if a listed version of Electron is a framework is installed.

Which versions are affected?

Compare what you have installed with 44.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-266; CWE-693: Protection Mechanism Failure. EPSS 0.24%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 29, 2026 · NIST NVD

    Detected

    Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, windows opened from a sandboxed top-level document did not inherit that document's active HTML sandbox restrictions. Untrusted content in a sandboxed top-level document that was permitted to open popups could therefore create a window with the

  2. Oct 15, 2026 · NIST NVD

    Updated

    Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, windows opened from a sandboxed top-level document did not inherit that document's active HTML sandbox restrictions. Untrusted content in a sandboxed top-level document that was permitted to open popups could therefore create a window with the

Sources

  • CVE.orgVulnerability recordCVE-2026-102674

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-102674

    30-day exploitation probability 0.2%

    first.org
  • JVN iPediaGovernment advisoryCVE-2026-102674

    Electronは、JavaScript、HTML、CSSを使用してクロスプラットフォームのデスクトップアプリケーションを作成するためのフレームワークです。バージョン41.10.6、42.9.2、43.4.1、および44.0.0-beta.5より前のバージョンでは、サンドボックス化されたトップレベルドキュメントから開かれたウィンドウが、そのドキュメントの有効なHTMLサンドボックス制限を継承していませんでした。したがって、ポップアップの作成が許可されたサンドボックス化されたトップレベルドキュメント内の信頼されていないコンテンツは、サンドボックスによって意

    jvndb.jvn.jp
  • NIST NVDVulnerability recordCVE-2026-102674

    Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, windows opened from a sandboxed top-level document did not inherit that document's active HTML sandbox restrictions. Untrus

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.