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CVE-2026-70608

7.2 · HIGH

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

Published Aug 5, 2026CWE-693EPSS 0.43%

Overview

CVE-2026-70608 is a high-severity vulnerability. It was published on August 5, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 41.10.3, and 42.0.1, a sandboxed iframe without the allow-popups keyword could still open a new window or trigger setWindowOpenHandler with no user interaction because new-window navigations taking the OpenURL path did not apply the iframe sandbox popup restriction. Apps that embed untrusted content in sandboxed iframes and rely on the absence of allow-popups to prevent window creation are affected, while apps that deny window creation in setWindowOpenHandler or do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in 39.8.10, 41.10.3, and 42.0.1.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/electron/electron/commit/3ff23c52ab364a0afc6ab5bd7851291d3159de57GitHubgithub.com/electron/electron/commit/57cbe329c4ae8aab5ac5ebdcb588adc9a11de0d3GitHubgithub.com/electron/electron/commit/68cf8b7d9122260f6b534a69a82c701a56cf159fGitHubgithub.com/electron/electron/pull/51437GitHubgithub.com/electron/electron/pull/51438GitHubgithub.com/electron/electron/pull/51439GitHubgithub.com/electron/electron/releases/tag/v39.8.10GitHubgithub.com/electron/electron/releases/tag/v41.10.3GitHubgithub.com/electron/electron/releases/tag/v42.0.1GitHubgithub.com/electron/electron/security/advisories/GHSA-9f4c-93c8-jc8g

How CyberStrike helps

Frequently asked questions

What is CVE-2026-70608?

CVE-2026-70608 is a high-severity vulnerability. It was published on August 5, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-70608?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-70608?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-70608?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-70608 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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