Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer could write attacker-controlled cache data and cause Electron to reuse it for a later load, executing the renderer's code in the more privileged preload context. The issue affects applications that load untrusted content. This issue is fixed in versions 42.10.0, 43.5.0, and 44.0.0-beta.6.
Fix
Patch, vendor advisory and mitigation references on NVD 5
- https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601 Patch
- https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3 Patch
- https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217 Patch
- https://github.com/electron/electron/pull/52480 Issue Tracking, Patch
- https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.8 · electronjsNVD modified 2026-10-08 20:24
Affected (CPE criteria) 15
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:alpha1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:alpha2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:alpha3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:alpha4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:alpha5:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:alpha6:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:alpha7:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:alpha8:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:alpha9:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:beta1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:beta2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:beta3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:beta4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:44.0.0:beta5:*:*:*:node.js:*:*
References 8
- https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601 Patch
- https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3 Patch
- https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217 Patch
- https://github.com/electron/electron/pull/52480 Issue Tracking, Patch
- https://github.com/electron/electron/releases/tag/v42.10.0 Release Notes
- https://github.com/electron/electron/releases/tag/v43.5.0 Release Notes
- https://github.com/electron/electron/releases/tag/v44.0.0-beta.6 Release Notes
- https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq Vendor Advisory