{"id":"EUVD-2026-53543","revision":"f9f60be3b83b4e6180ac568dc63bd5c1","records":[{"revision":"f9f60be3b83b4e6180ac568dc63bd5c1","observedAt":"2026-10-28T09:35:51.279+00:00","statement":{"source":"euvd","id":"EUVD-2026-53543","aliases":["CVE-2026-70610","GHSA-ff2p-hmqr-hxm4"],"title":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.4, objects copied across the contextBridge boundary from untrusted content could carry …","description":"Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.4, objects copied across the contextBridge boundary from untrusted content could carry an attacker-influenced prototype, enabling prototype-pollution-style attacks against preload code despite context isolation being enabled. Apps are only affected if their preload code accepts object arguments from untrusted content and reads properties from them without own-property checks, while apps that only accept primitive arguments or validate object arguments are not affected. This issue is fixed in 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.4.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","score":5.4,"severity":null}],"references":["https://github.com/electron/electron/security/advisories/GHSA-ff2p-hmqr-hxm4","https://github.com/electron/electron/pull/51083","https://github.com/electron/electron/pull/51084","https://github.com/electron/electron/pull/51085","https://github.com/electron/electron/pull/51086","https://github.com/electron/electron/commit/17d5d26499cd279fab48f5f26527f8edc02a7713","https://github.com/electron/electron/commit/23a6efb714dec80e2cf45d3054d18d701162e4dd","https://github.com/electron/electron/commit/4ac50292d552fb510eb778392620c85308770a55","https://github.com/electron/electron/commit/5b699544cbbed51bedb7c60d75c8c42be5825737","https://github.com/electron/electron/releases/tag/v39.8.9","https://github.com/electron/electron/releases/tag/v40.9.2","https://github.com/electron/electron/releases/tag/v41.2.2","https://github.com/electron/electron/releases/tag/v42.0.0-beta.4"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-53543","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 5, 2026, 5:41:03 PM","dateUpdated":"Aug 6, 2026, 2:31:10 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-53543","identifiers":["EUVD-2026-53543","CVE-2026-70610","GHSA-ff2p-hmqr-hxm4"]},"retained":false,"historicalAffected":[]}],"coverage":[]}