GHSA-pfmc-3mgc-p6fp
Electron: Off-screen rendering trusts GPU-supplied geometry over shared-memory size
At a glance
- Published
- Updated
- CVE
- CVE-2026-70598
- CVSS_V3
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
Description
### Impact In offscreen rendering mode, frame data received from the GPU process was not fully validated by the main process. A compromised GPU process could cause the main process to read out-of-bounds memory while producing `paint` event images, disclosing memory or crashing the app. Apps are only affected if they use offscreen rendering (`webPreferences.offscreen`) and an attacker has separately gained code execution in the GPU process. Apps that do not use offscreen rendering are not affected. ### Workarounds There are no app side workarounds, you must update to a patched version of Electron. ### Fixed Versions * `42.0.0-beta.3` * `41.2.1` * `40.9.0` * `39.8.10` ### For more information If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)
Affected packages
| Package | Versions |
|---|---|
| npm · electron | introduced 0, fixed 39.8.10 |
| npm · electron | introduced 40.0.0-alpha.1, fixed 40.9.0 |
| npm · electron | introduced 41.0.0-alpha.1, fixed 41.2.1 |
| npm · electron | introduced 42.0.0-alpha.1, fixed 42.0.0-beta.3 |
References
- https://github.com/electron/electron/security/advisories/GHSA-pfmc-3mgc-p6fp WEB
- https://github.com/electron/electron/commit/2c24640e7b0b9c74fe9f44bce0fde138340ff4fb WEB
- https://github.com/electron/electron PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |