{"id":"CVE-2026-102677","title":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS","summary":"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 matc…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-20","CWE-345"],"vendor":"electron","product":"electron","affected":["electron >= 42.3.3, < 42.10.0","electron >= 43.0.0-beta.1, < 43.5.0","electron >= 44.0.0-alpha.1, < 44.0.0-beta.6"],"patched":["electron 42.10.0","electron 43.5.0","electron 44.0.0-beta.6"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T18:17:09.573","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102677","references":[{"url":"https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/pull/52480","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v42.10.0","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v43.5.0","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/releases/tag/v44.0.0-beta.6","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq","label":"security-advisories@github.com"},{"url":"https://github.com/electron/electron/commit/06a12a87a23f40abbf580fc7a552bc1189812c45"},{"url":"https://github.com/advisories/GHSA-qmv3-fv6v-rmhq"}],"tags":["nvd","ghsa","npm","cve.org"],"aliases":["GHSA-qmv3-fv6v-rmhq"],"ecosystem":"npm","ingestedAt":"2026-09-29T18:42:35.812Z","slug":"CVE-2026-102677","body":"## Overview\n\nElectron 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-102677)\n\nAffected packages:\n\n- `electron >= 42.3.3, < 42.10.0`\n- `electron >= 43.0.0-beta.1, < 43.5.0`\n- `electron >= 44.0.0-alpha.1, < 44.0.0-beta.6`\n\nPatched in:\n\n- `electron 42.10.0`\n- `electron 43.5.0`\n- `electron 44.0.0-beta.6`\n\nSource: https://github.com/advisories/GHSA-qmv3-fv6v-rmhq","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}