{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102673", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-29T16:10:04.075Z", "datePublished": "2026-09-29T16:38:41.946Z", "dateUpdated": "2026-09-29T16:38:41.946Z"}, "containers": {"cna": {"title": "Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab", "problemTypes": [{"descriptions": [{"cweId": "CWE-346", "lang": "en", "description": "CWE-346: Origin Validation Error", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-693", "lang": "en", "description": "CWE-693: Protection Mechanism Failure", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/electron/electron/security/advisories/GHSA-hq2x-r82h-9wj4", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/electron/electron/security/advisories/GHSA-hq2x-r82h-9wj4"}, {"name": "https://github.com/electron/electron/pull/52133", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/pull/52133"}, {"name": "https://github.com/electron/electron/commit/7ea14d5f55ecb11a30447701ddca16b3feee0bba", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/commit/7ea14d5f55ecb11a30447701ddca16b3feee0bba"}, {"name": "https://github.com/electron/electron/commit/e26b2640e7795c42bfb111b76009cbb4327c9a69", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/commit/e26b2640e7795c42bfb111b76009cbb4327c9a69"}, {"name": "https://github.com/electron/electron/commit/ebe1165ee2b05c203c26dd2244ef1c5b9b1c04da", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/commit/ebe1165ee2b05c203c26dd2244ef1c5b9b1c04da"}, {"name": "https://github.com/electron/electron/releases/tag/v41.10.4", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/releases/tag/v41.10.4"}, {"name": "https://github.com/electron/electron/releases/tag/v42.5.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/releases/tag/v42.5.2"}, {"name": "https://github.com/electron/electron/releases/tag/v43.0.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/releases/tag/v43.0.0"}], "affected": [{"vendor": "electron", "product": "electron", "versions": [{"version": "< 41.10.4", "status": "affected"}, {"version": ">= 42.0.0-alpha.1, < 42.5.2", "status": "affected"}, {"version": ">= 43.0.0-alpha.1, < 43.0.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-29T16:38:41.946Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-hq2x-r82h-9wj4", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "electron", "vendor": "electron", "versions": [{"status": "affected", "version": "< 41.10.4"}, {"status": "affected", "version": ">= 42.0.0-alpha.1, < 42.5.2"}, {"status": "affected", "version": ">= 43.0.0-alpha.1, < 43.0.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-102673", "lastModified": "2026-09-29T17:17:07.487", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.7, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-29T17:17:07.487", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/commit/7ea14d5f55ecb11a30447701ddca16b3feee0bba"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/commit/e26b2640e7795c42bfb111b76009cbb4327c9a69"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/commit/ebe1165ee2b05c203c26dd2244ef1c5b9b1c04da"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/pull/52133"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/releases/tag/v41.10.4"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/releases/tag/v42.5.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/releases/tag/v43.0.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/security/advisories/GHSA-hq2x-r82h-9wj4"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-346"}, {"lang": "en", "value": "CWE-693"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}