{"id":"GHSA-jjp3-mq3x-295m","summary":"Electron: Use-after-free in PowerMonitor on Windows and macOS","details":"### Impact\nApps that use the `powerMonitor` module may be vulnerable to a use-after-free. After the native `PowerMonitor` object is garbage-collected, the associated OS-level resources (a message window on Windows, a shutdown handler on macOS) retain dangling references. A subsequent session-change event (Windows) or system shutdown (macOS) dereferences freed memory, which may lead to a crash or memory corruption.\n\nAll apps that access `powerMonitor` events (`suspend`, `resume`, `lock-screen`, etc.) are potentially affected. The issue is not directly renderer-controllable.\n\n### Workarounds\nThere are no app side workarounds, you must update to a patched version of Electron.\n\n### Fixed Versions\n* `41.0.0-beta.8`\n* `40.8.0`\n* `39.8.1`\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)","aliases":["CVE-2026-34770"],"modified":"2026-04-06T23:20:13.797422Z","published":"2026-04-03T02:39:52Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-04-03T02:39:52Z","nvd_published_at":"2026-04-04T00:16:17Z","cwe_ids":["CWE-416"],"severity":"HIGH"},"references":[{"type":"WEB","url":"https://github.com/electron/electron/security/advisories/GHSA-jjp3-mq3x-295m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34770"},{"type":"PACKAGE","url":"https://github.com/electron/electron"}],"affected":[{"package":{"name":"electron","ecosystem":"npm","purl":"pkg:npm/electron"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"38.8.6"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-jjp3-mq3x-295m/GHSA-jjp3-mq3x-295m.json"}},{"package":{"name":"electron","ecosystem":"npm","purl":"pkg:npm/electron"},"ranges":[{"type":"SEMVER","events":[{"introduced":"39.0.0-alpha.1"},{"fixed":"39.8.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-jjp3-mq3x-295m/GHSA-jjp3-mq3x-295m.json"}},{"package":{"name":"electron","ecosystem":"npm","purl":"pkg:npm/electron"},"ranges":[{"type":"SEMVER","events":[{"introduced":"40.0.0-alpha.1"},{"fixed":"40.8.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-jjp3-mq3x-295m/GHSA-jjp3-mq3x-295m.json"}},{"package":{"name":"electron","ecosystem":"npm","purl":"pkg:npm/electron"},"ranges":[{"type":"SEMVER","events":[{"introduced":"41.0.0-alpha.1"},{"fixed":"41.0.0-beta.8"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-jjp3-mq3x-295m/GHSA-jjp3-mq3x-295m.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}