Privilege escalation in Electron
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Electron — versions < 41.10.6, >= 42.0.0-alpha.1, < 42.9.2, >= 43.0.0-alpha.1, < 43.4.1
Weakness classification (CWE)
References
- github.com/electron/electron/security/advisories/GHSA-gr2m-v5gq-v685
- github.com/electron/electron/commit/29fc130569f970e91e355383821a4af0f25724a2
- github.com/electron/electron/commit/3ecf3e74f4be6e2360644679b0b4698742be0e1d
- github.com/electron/electron/commit/6594d5a5b074cf501da084dc7908d3df0d68a886
- github.com/electron/electron/commit/e9c4d3cbe912e18d7c63af78e63e98ae7a48cd3a
- github.com/electron/electron/releases/tag/v41.10.6
- github.com/electron/electron/releases/tag/v42.9.2
- github.com/electron/electron/releases/tag/v43.4.1
- github.com/electron/electron/releases/tag/v44.0.0-beta.5
Frequently asked questions
- What is CVE-2026-102674?
- CVE-2026-102674 is a high-severity vulnerability in Electron, classified under Incorrect Privilege Assignment. CVSS score: 8.2/10. Published 2026-09-29.
- How severe is CVE-2026-102674?
- High severity. CVSS v3 base score is 8.2 out of 10.