GHSA-jjp3-mq3x-295m
Electron: Use-after-free in PowerMonitor on Windows and macOS
At a glance
- Published
- Updated
- CVE
- CVE-2026-34770
- CVSS_V3
- CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Description
### Impact Apps 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. All apps that access `powerMonitor` events (`suspend`, `resume`, `lock-screen`, etc.) are potentially affected. The issue is not directly renderer-controllable. ### Workarounds There are no app side workarounds, you must update to a patched version of Electron. ### Fixed Versions * `41.0.0-beta.8` * `40.8.0` * `39.8.1` * `38.8.6` ### For more information If there are any questions or comments about this advisory, please email [security@electronjs.org](mailto:security@electronjs.org)
Affected packages
| Package | Versions |
|---|---|
| npm · electron | introduced 0, fixed 38.8.6 |
| npm · electron | introduced 39.0.0-alpha.1, fixed 39.8.1 |
| npm · electron | introduced 40.0.0-alpha.1, fixed 40.8.0 |
| npm · electron | introduced 41.0.0-alpha.1, fixed 41.0.0-beta.8 |
References
- https://github.com/electron/electron/security/advisories/GHSA-jjp3-mq3x-295m WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-34770 ADVISORY
- https://github.com/electron/electron PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |