{"id":"CVE-2026-102676","state":"PUBLISHED","title":"Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions","description":"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, an Electron <webview> guest could enable nodeIntegrationInWorker for its Web Workers even when the unsandboxed embedder had Node.js integration disabled, allowing untrusted guest content to create a Node-enabled worker with more privilege than the embedder granted. Applications that do not enable the <webview> tag or that keep the embedder sandboxed are not affected. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5.","publishedAt":"2026-09-29T16:56:49.007Z","updatedAt":"2026-09-29T19:50:28.382Z","severity":{"score":8.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["electron electron"],"affected":[{"vendor":"electron","product":"electron","versions":[{"version":"< 41.10.6","status":"affected"},{"version":">= 42.0.0-alpha.1, < 42.9.2","status":"affected"},{"version":">= 43.0.0-alpha.1, < 43.4.1","status":"affected"},{"version":">= 44.0.0-alpha.1, < 44.0.0-beta.5","status":"affected"}]}],"references":["https://github.com/electron/electron/security/advisories/GHSA-9qh4-3jw8-366w","https://github.com/electron/electron/commit/6462a2e1dc4e6adffd3b7d9b9be1474c45dcbbe2","https://github.com/electron/electron/commit/9a675aef8822bae4088567822969f900b3a37671","https://github.com/electron/electron/commit/b3ae0aab5cf81c2ed03d04df1ae8e69ecfab7886","https://github.com/electron/electron/commit/cd34f335c8664613db5b6e61ae51e2e1846233ae","https://github.com/electron/electron/releases/tag/v41.10.6","https://github.com/electron/electron/releases/tag/v42.9.2","https://github.com/electron/electron/releases/tag/v43.4.1","https://github.com/electron/electron/releases/tag/v44.0.0-beta.5"],"weaknesses":["CWE-269","CWE-1188"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/102xxx/CVE-2026-102676.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-102676","state":"PUBLISHED","datePublished":"2026-09-29T16:56:49.007Z","dateUpdated":"2026-09-29T19:50:28.382Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-09-29T16:10:04.075Z"},"containers":{"cna":{"title":"Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions","descriptions":[{"lang":"en","value":"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, an Electron <webview> guest could enable nodeIntegrationInWorker for its Web Workers even when the unsandboxed embedder had Node.js integration disabled, allowing untrusted guest content to create a Node-enabled worker with more privilege than the embedder granted. Applications that do not enable the <webview> tag or that keep the embedder sandboxed are not affected. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5."}],"affected":[{"vendor":"electron","product":"electron","versions":[{"version":"< 41.10.6","status":"affected"},{"version":">= 42.0.0-alpha.1, < 42.9.2","status":"affected"},{"version":">= 43.0.0-alpha.1, < 43.4.1","status":"affected"},{"version":">= 44.0.0-alpha.1, < 44.0.0-beta.5","status":"affected"}]}],"references":[{"url":"https://github.com/electron/electron/security/advisories/GHSA-9qh4-3jw8-366w","name":"https://github.com/electron/electron/security/advisories/GHSA-9qh4-3jw8-366w","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/electron/electron/commit/6462a2e1dc4e6adffd3b7d9b9be1474c45dcbbe2","name":"https://github.com/electron/electron/commit/6462a2e1dc4e6adffd3b7d9b9be1474c45dcbbe2","tags":["x_refsource_MISC"]},{"url":"https://github.com/electron/electron/commit/9a675aef8822bae4088567822969f900b3a37671","name":"https://github.com/electron/electron/commit/9a675aef8822bae4088567822969f900b3a37671","tags":["x_refsource_MISC"]},{"url":"https://github.com/electron/electron/commit/b3ae0aab5cf81c2ed03d04df1ae8e69ecfab7886","name":"https://github.com/electron/electron/commit/b3ae0aab5cf81c2ed03d04df1ae8e69ecfab7886","tags":["x_refsource_MISC"]},{"url":"https://github.com/electron/electron/commit/cd34f335c8664613db5b6e61ae51e2e1846233ae","name":"https://github.com/electron/electron/commit/cd34f335c8664613db5b6e61ae51e2e1846233ae","tags":["x_refsource_MISC"]},{"url":"https://github.com/electron/electron/releases/tag/v41.10.6","name":"https://github.com/electron/electron/releases/tag/v41.10.6","tags":["x_refsource_MISC"]},{"url":"https://github.com/electron/electron/releases/tag/v42.9.2","name":"https://github.com/electron/electron/releases/tag/v42.9.2","tags":["x_refsource_MISC"]},{"url":"https://github.com/electron/electron/releases/tag/v43.4.1","name":"https://github.com/electron/electron/releases/tag/v43.4.1","tags":["x_refsource_MISC"]},{"url":"https://github.com/electron/electron/releases/tag/v44.0.0-beta.5","name":"https://github.com/electron/electron/releases/tag/v44.0.0-beta.5","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","lang":"en","description":"CWE-269: Improper Privilege Management","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1188","lang":"en","description":"CWE-1188: Insecure Default Initialization of Resource","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-29T16:56:49.007Z"},"source":{"advisory":"GHSA-9qh4-3jw8-366w","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-29T19:50:13.282220Z","id":"CVE-2026-102676","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-29T19:50:28.382Z"}}]}}}