{"id":"CVE-2026-34775","aliases":["GHSA-xwr5-m59h-vwqr"],"url":"https://o3.security/vulnerability/CVE-2026-34775","summary":"Electron: nodeIntegrationInWorker not correctly scoped in shared renderer processes","details":"### Impact\nThe `nodeIntegrationInWorker` webPreference was not correctly scoped in all configurations. In certain process-sharing scenarios, workers spawned in frames configured with `nodeIntegrationInWorker: false` could still receive Node.js integration.\n\nApps are only affected if they enable `nodeIntegrationInWorker`. Apps that do not use `nodeIntegrationInWorker` are not affected.\n\n### Workarounds\nAvoid enabling `nodeIntegrationInWorker` in apps that also open child windows or embed content with differing webPreferences.\n\n### Fixed Versions\n* `41.0.0`\n* `40.8.4`\n* `39.8.4`\n* `38.8.6`\n\n### For more information\nIf there are any questions or comments about this advisory, please email [security@electronjs.org](mailto:security@electronjs.org)","published":"2026-04-03T23:55:20.950Z","modified":"2026-08-12T15:33:40.362805Z","cvss":{"score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"},"epss":{"score":0.00289,"percentile":0.21079,"asOf":"2026-08-08"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"electron","fixedVersion":"38.8.6"},{"ecosystem":"npm","name":"electron","fixedVersion":"39.8.4"},{"ecosystem":"npm","name":"electron","fixedVersion":"40.8.4"},{"ecosystem":"npm","name":"electron","fixedVersion":"41.0.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34775.json"},{"type":"ADVISORY","url":"https://github.com/electron/electron/security/advisories/GHSA-xwr5-m59h-vwqr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34775"},{"type":"PACKAGE","url":"https://github.com/electron/electron"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T15:33:40.362805Z"}}