{"id":"CVE-2026-102677","published":"2026-09-29T18:17:09.573","lastModified":"2026-09-29T18:17:09.573","description":"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.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","cwes":["CWE-20","CWE-345"],"vendors":[],"products":[],"references":[{"url":"https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601","tags":[]},{"url":"https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3","tags":[]},{"url":"https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217","tags":[]},{"url":"https://github.com/electron/electron/pull/52480","tags":[]},{"url":"https://github.com/electron/electron/releases/tag/v42.10.0","tags":[]},{"url":"https://github.com/electron/electron/releases/tag/v43.5.0","tags":[]},{"url":"https://github.com/electron/electron/releases/tag/v44.0.0-beta.6","tags":[]},{"url":"https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq","tags":[]}],"exploitRefs":[{"url":"https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601","tags":[]},{"url":"https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3","tags":[]},{"url":"https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217","tags":[]},{"url":"https://github.com/electron/electron/pull/52480","tags":[]},{"url":"https://github.com/electron/electron/releases/tag/v42.10.0","tags":[]},{"url":"https://github.com/electron/electron/releases/tag/v43.5.0","tags":[]},{"url":"https://github.com/electron/electron/releases/tag/v44.0.0-beta.6","tags":[]},{"url":"https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq","tags":[]}],"hasPoc":true,"ai":null}