CVE-2026-102673
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.4, 42.5.2, and 43.0.0, popups opened from a sandboxed iframe through Electron's OpenURLFromTab navigation path, including links using target="_blank" or a middle-click, did not receive the inherited HTML sandbox restrictions. An untrusted iframe using the allow-scripts allow-popups configuration could therefore open a popup with the embedding application's full origin, exposing that origin's cookies, storage, and same-origin scripting capabilities. Applications that do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in versions 41.10.4, 42.5.2, and 43.0.0.
- CVSS 3.1
- 6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-346, CWE-693
- Published
- Modified
- Record from
- the NVD, synced
Affected
- electronjs:electron
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-hq2x-r82h-9wj4 | npm | electron | <41.10.4 | 41.10.4 |
| GHSA-hq2x-r82h-9wj4 | npm | electron | >=42.0.0-alpha.1 <42.5.2 | 42.5.2 |
| GHSA-hq2x-r82h-9wj4 | npm | electron | >=43.0.0-alpha.1 <43.0.0 | 43.0.0 |
References
- https://github.com/electron/electron/commit/7ea14d5f55ecb11a30447701ddca16b3feee0bba
- https://github.com/electron/electron/commit/e26b2640e7795c42bfb111b76009cbb4327c9a69
- https://github.com/electron/electron/commit/ebe1165ee2b05c203c26dd2244ef1c5b9b1c04da
- https://github.com/electron/electron/pull/52133
- https://github.com/electron/electron/releases/tag/v41.10.4