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GHSA-pfmc-3mgc-p6fp

Electron: Off-screen rendering trusts GPU-supplied geometry over shared-memory size

Source: GitHub Advisory Database (reviewed) Low CVE-2026-70598

Packages

EcosystemPackageAffectedFixed in
npm electron < 39.8.10 39.8.10
npm electron >= 40.0.0-alpha.1, < 40.9.0 40.9.0
npm electron >= 41.0.0-alpha.1, < 41.2.1 41.2.1
npm electron >= 42.0.0-alpha.1, < 42.0.0-beta.3 42.0.0-beta.3

Details

As written in the advisory (Markdown source, shown as plain text).

### 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])

References

External links from the advisory. They lead to third-party sites.