Electron: Off-screen rendering trusts GPU-supplied geometry over shared-memory size
Exact source revision recorded 24 Oct 2026 13:17:17 UTC. It does not establish the source's current position. Latest evidence.
osv · GHSA-pfmc-3mgc-p6fp
Published### 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 [[email protected]](mailto:[email protected])
- Source published
- 5 Aug 2026 15:27:27 UTC
- Source modified
- 5 Aug 2026 15:41:04 UTC
- Observed here
- 24 Oct 2026 13:17:17 UTC
- Source terms
- GitHub Advisory Database · CC-BY-4.0
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS_V3 · CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
Publisher rating · LOW