CVE-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. 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.

• CWE-266
• CWE-693

• https://github.com/electron/electron/commit/29fc130569f970e91e355383821a4af0f25724a2
• https://github.com/electron/electron/commit/3ecf3e74f4be6e2360644679b0b4698742be0e1d
• https://github.com/electron/electron/commit/6594d5a5b074cf501da084dc7908d3df0d68a886
• https://github.com/electron/electron/commit/e9c4d3cbe912e18d7c63af78e63e98ae7a48cd3a
• https://github.com/electron/electron/releases/tag/v41.10.6
• https://github.com/electron/electron/releases/tag/v42.9.2
• https://github.com/electron/electron/releases/tag/v43.4.1
• https://github.com/electron/electron/releases/tag/v44.0.0-beta.5
• https://github.com/electron/electron/security/advisories/GHSA-gr2m-v5gq-v685

Published

Sep 29, 2026

Last Modified

Sep 29, 2026

Status

Received

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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