{"id":"CVE-2026-102673","title":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS","summary":"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, includ…","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","cwe":["CWE-346","CWE-693","CWE-281"],"vendor":"electronjs","product":"electron","affected":["electron < 39.8.8","electron >= 40.0.0, < 40.9.0","electron >= 41.0.0, <= 41.2.1","electron = 42.0.0"],"patched":["electron 40.9.0"],"published":"2026-09-29","updated":"2026-10-15","sourceUpdated":"2026-10-15T14:01:06.497","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102673","references":[{"url":"https://github.com/electron/electron/commit/7ea14d5f55ecb11a30447701ddca16b3feee0bba","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/commit/e26b2640e7795c42bfb111b76009cbb4327c9a69","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/commit/ebe1165ee2b05c203c26dd2244ef1c5b9b1c04da","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/pull/52133","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v41.10.4","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v42.5.2","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v43.0.0","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/security/advisories/GHSA-hq2x-r82h-9wj4","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-hq2x-r82h-9wj4"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-102673.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-102673"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543311"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-102673"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102673"}],"tags":["nvd","cve.org","ghsa","npm","csaf","vex","red-hat"],"epss":0.00132,"epssPercentile":0.02758,"aliases":["GHSA-hq2x-r82h-9wj4"],"ecosystem":"npm","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-30T19:34:09.694143Z"},"ingestedAt":"2026-09-29T17:41:02.205Z","slug":"CVE-2026-102673","body":"## Overview\n\nElectron 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.\n\n## Affected\n\n- `electron < 39.8.8`\n- `electron >= 40.0.0, < 40.9.0`\n- `electron >= 41.0.0, <= 41.2.1`\n- `electron = 42.0.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `electron 40.9.0`\n\n## Package advisory (CVE-2026-102673)\n\nAffected packages:\n\n- `electron < 41.10.4`\n- `electron >= 42.0.0-alpha.1, < 42.5.2`\n- `electron >= 43.0.0-alpha.1, < 43.0.0`\n\nPatched in:\n\n- `electron 41.10.4`\n- `electron 42.5.2`\n- `electron 43.0.0`\n\nSource: https://github.com/advisories/GHSA-hq2x-r82h-9wj4\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Red Hat Build of Podman Desktop, Red Hat Enterprise Linux 10 · no fix planned: Red Hat Build of Podman Desktop, Red Hat Enterprise Linux 10 · updated 2026-10-01 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-102673.json)","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}