← CVE Intelligence

CVE-2026-34764

Electron has a use-after-free in offscreen shared texture release() callback PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
electron / electronaffected >= 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

CWE

CWE-416

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.