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GHSA-h3v5-h239-pg29

Electron: Off-screen rendering on macOS trusts GPU-supplied frame geometry

Source: GitHub Advisory Database (reviewed) Low CVE-2026-114124

Packages

EcosystemPackageAffectedFixed in
npm electron < 42.11.6 42.11.6
npm electron >= 43.0.0-alpha.1, < 43.7.3 43.7.3
npm electron >= 44.0.0-alpha.1, < 44.4.3 44.4.3
npm electron >= 45.0.0-alpha.1, < 45.0.0-alpha.9 45.0.0-alpha.9

Details

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

### Impact In offscreen rendering mode on macOS, 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. GHSA-pfmc-3mgc-p6fp covers the same issue on the other capture paths. Apps are only affected if they use offscreen rendering (`webPreferences.offscreen`) on macOS 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 * `45.0.0-alpha.9` * `44.4.3` * `43.7.3` * `42.11.6` ### 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.