CVE-2026-34764
CVE-2026-34764 · Electron has a use-after-free in offscreen shared texture release() callback
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 33.0.0-alpha.1 to before 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5, apps that use offscreen rendering with GPU shared textures may be vulnerable to a use-after-free. Under certain conditions, the release() callback provided on a paint event texture can outlive its backing native state, and invoking it after that point dereferences freed memory in the main process, which may lead to a crash or memory corruption. Apps are only affected if they use offscreen rendering with webPreferences.offscreen: { useSharedTexture: true }. Apps that do not enable shared-texture offscreen rendering are not affected. To mitigate this issue, ensure texture.release() is called promptly after the texture has been consumed, before the texture object becomes unreachable. This vulnerability is fixed in 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5.
CVSS 2.3 · Low · EPSS 0.1% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
electron
- Versions
- >= 33.0.0-alpha.1, < 39.8.5: Affected
- >= 40.0.0-alpha.1, < 40.8.5: Affected
- >= 41.0.0-alpha.1, < 41.1.0: Affected
- >= 42.0.0-alpha.1, < 42.0.0-alpha.5: Affected
No fix published
electron npm
- Affected ranges
- SEMVER: ≥ 33.0.0-alpha.1, < 39.8.5
Update to 39.8.5
electron npm
- Affected ranges
- SEMVER: ≥ 40.0.0-alpha.1, < 40.8.5
Update to 40.8.5
electron npm
- Affected ranges
- SEMVER: ≥ 41.0.0-alpha.1, < 41.1.0
Update to 41.1.0
electron npm
- Affected ranges
- SEMVER: ≥ 42.0.0-alpha.1, < 42.0.0-alpha.5
Update to 42.0.0-alpha.5