{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-70601", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-04T19:50:27.328Z", "datePublished": "2026-08-05T15:45:31.315Z", "dateUpdated": "2026-08-05T17:30:28.446Z"}, "containers": {"cna": {"title": "Electron: Context isolation bypass via Function.prototype.bind hijack", "problemTypes": [{"descriptions": [{"cweId": "CWE-693", "lang": "en", "description": "CWE-693: Protection Mechanism Failure", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/electron/electron/security/advisories/GHSA-h7rp-cf8h-j98x", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/electron/electron/security/advisories/GHSA-h7rp-cf8h-j98x"}], "affected": [{"vendor": "electron", "product": "electron", "versions": [{"version": "< 39.8.9", "status": "affected"}, {"version": ">= 40.0.0-alpha.1, < 40.9.2", "status": "affected"}, {"version": ">= 41.0.0-alpha.1, < 41.2.2", "status": "affected"}, {"version": ">= 42.0.0-alpha.1, < 42.0.0-beta.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-05T15:45:31.315Z"}, "descriptions": [{"lang": "en", "value": "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.5, apps that expose Promise-returning functions to web content via contextBridge may be vulnerable to a context isolation bypass. Untrusted web content could obtain access to the isolated preload world and, through it, every capability the preload script has. In renderers without a sandbox, or with nodeIntegration enabled, this may escalate to Node.js access. Apps are affected if they expose Promise-returning functions via contextBridge, the standard pattern for wrapping ipcRenderer.invoke, in windows that load untrusted content. This issue is fixed in versions 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5."}], "source": {"advisory": "GHSA-h7rp-cf8h-j98x", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-05T17:29:54.563592Z", "id": "CVE-2026-70601", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-05T17:30:28.446Z"}}]}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,39.8.9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[40.0.0-alpha.1,40.9.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[41.0.0-alpha.1,41.2.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[42.0.0-alpha.1,42.0.0-beta.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "electron", "source": "cna", "vendor": "electron"}, "product": "electron", "vendor": "electron"}], "created": "2026-08-05T17:30:07.293544+00:00", "updated": "2026-08-05T17:30:07.293563+00:00", "vendors": ["electron", "electron$PRODUCT$electron"]}