{"id":"CVE-2026-102677","sourceIdentifier":"security-advisories@github.com","published":"2026-09-29T18:17:09.573","lastModified":"2026-10-08T20:24:30.737","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"electron","product":"electron","versions":[{"version":">= 42.3.3, < 42.10.0","status":"affected"},{"version":">= 43.0.0-beta.1, < 43.5.0","status":"affected"},{"version":">= 44.0.0-alpha.1, < 44.0.0-beta.6","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.1,"impactScore":6.0},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.0,"impactScore":6.0}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-02T12:18:07.959498Z","id":"CVE-2026-102677","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"},{"lang":"en","value":"CWE-345"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*","versionStartIncluding":"42.3.3","versionEndIncluding":"42.10.0","matchCriteriaId":"0983EAA7-6B7F-4F8A-83DE-0F3769CC6C4A"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*","versionStartIncluding":"43.0.0","versionEndExcluding":"43.4.2","matchCriteriaId":"9079739C-BB0A-4D28-8AD4-F4558D6773B2"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:alpha1:*:*:*:node.js:*:*","matchCriteriaId":"94D88EA0-06B8-4682-B01F-D3E1D7F6F806"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:alpha2:*:*:*:node.js:*:*","matchCriteriaId":"796732E1-53E5-4D7F-AA0C-9CBDD29F7210"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:alpha3:*:*:*:node.js:*:*","matchCriteriaId":"522046B0-9E6A-481A-A8B2-69AD79D61259"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:alpha4:*:*:*:node.js:*:*","matchCriteriaId":"7073A25C-D7C8-42C6-9A19-AF45BE0CDF9F"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:alpha5:*:*:*:node.js:*:*","matchCriteriaId":"FD3928C5-4200-4CA6-864C-2537CFCF1039"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:alpha6:*:*:*:node.js:*:*","matchCriteriaId":"F2E8594F-E690-47D9-BFB9-22E127F4EEC8"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:alpha7:*:*:*:node.js:*:*","matchCriteriaId":"3106D6D5-37B3-4422-AB92-95E81B8B18F3"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:alpha8:*:*:*:node.js:*:*","matchCriteriaId":"990B95FF-4B70-4E2A-9ADE-96DB4FD83F58"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:alpha9:*:*:*:node.js:*:*","matchCriteriaId":"550B3853-4CD1-491C-9C66-E3DBDEF5415F"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:beta1:*:*:*:node.js:*:*","matchCriteriaId":"F3DCC540-D8FC-4602-8150-4F5FA7E6AE8F"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:beta2:*:*:*:node.js:*:*","matchCriteriaId":"A6DBFDE8-90FE-47A1-9311-CDADB8598818"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:beta3:*:*:*:node.js:*:*","matchCriteriaId":"42385506-40E0-4520-86B8-7EA679DD68F5"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:beta4:*:*:*:node.js:*:*","matchCriteriaId":"2061B84C-AC6C-4F81-B14B-EA747246A048"},{"vulnerable":true,"criteria":"cpe:2.3:a:electronjs:electron:44.0.0:beta5:*:*:*:node.js:*:*","matchCriteriaId":"48A97AF4-2C03-425F-ABB4-50D522C1426D"}]}]}],"references":[{"url":"https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/electron/electron/pull/52480","source":"security-advisories@github.com","tags":["Issue 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