{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102672", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-29T16:10:04.075Z", "datePublished": "2026-10-13T15:52:46.436Z", "dateUpdated": "2026-10-13T15:52:46.436Z"}, "containers": {"cna": {"title": "Electron: Local race condition in Squirrel.Mac update installation on macOS", "problemTypes": [{"descriptions": [{"cweId": "CWE-367", "lang": "en", "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/electron/electron/security/advisories/GHSA-vv43-5jgx-7qv8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/electron/electron/security/advisories/GHSA-vv43-5jgx-7qv8"}, {"name": "https://github.com/electron/electron/pull/50745", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/pull/50745"}, {"name": "https://github.com/electron/electron/commit/01faabfc250801a980fc94d64608046c67fc1cd9", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/commit/01faabfc250801a980fc94d64608046c67fc1cd9"}, {"name": "https://github.com/electron/electron/commit/15e2928a5c5f01759107b414010e220d90d59cef", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/commit/15e2928a5c5f01759107b414010e220d90d59cef"}, {"name": "https://github.com/electron/electron/commit/a0f9ff4cc0340545008424232d49caadd9c0c767", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/commit/a0f9ff4cc0340545008424232d49caadd9c0c767"}, {"name": "https://github.com/electron/electron/commit/b8f25c4cedb2e0f5f475912b709aba19c57c26be", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/commit/b8f25c4cedb2e0f5f475912b709aba19c57c26be"}, {"name": "https://github.com/electron/electron/releases/tag/v39.8.10", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/releases/tag/v39.8.10"}, {"name": "https://github.com/electron/electron/releases/tag/v41.10.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/releases/tag/v41.10.5"}, {"name": "https://github.com/electron/electron/releases/tag/v42.0.0-beta.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron/electron/releases/tag/v42.0.0-beta.2"}], "affected": [{"vendor": "electron", "product": "electron", "versions": [{"version": "< 39.8.10", "status": "affected"}, {"version": ">= 40.0.0-alpha.1, < 41.10.5", "status": "affected"}, {"version": ">= 42.0.0-alpha.1, < 42.0.0-beta.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-13T15:52:46.436Z"}, "descriptions": [{"lang": "en", "value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 41.10.5, and 42.0.0-beta.2, Electron applications on macOS that use Squirrel.Mac-based automatic updates are vulnerable to a local race in the privileged ShipIt helper. The helper did not bind the validated update target to one canonical application-bundle path for the full installation, allowing a local attacker to redirect the root-level write so that it overwrites another application's files instead of the application that initiated the update. Applications on other platforms and macOS applications that do not use Squirrel.Mac-based automatic updates are not affected. This issue is fixed in versions 39.8.10, 41.10.5, and 42.0.0-beta.2."}], "source": {"advisory": "GHSA-vv43-5jgx-7qv8", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "electron", "vendor": "electron", "versions": [{"status": "affected", "version": "< 39.8.10"}, {"status": "affected", "version": ">= 40.0.0-alpha.1, < 41.10.5"}, {"status": "affected", "version": ">= 42.0.0-alpha.1, < 42.0.0-beta.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 41.10.5, and 42.0.0-beta.2, Electron applications on macOS that use Squirrel.Mac-based automatic updates are vulnerable to a local race in the privileged ShipIt helper. The helper did not bind the validated update target to one canonical application-bundle path for the full installation, allowing a local attacker to redirect the root-level write so that it overwrites another application's files instead of the application that initiated the update. Applications on other platforms and macOS applications that do not use Squirrel.Mac-based automatic updates are not affected. This issue is fixed in versions 39.8.10, 41.10.5, and 42.0.0-beta.2."}], "id": "CVE-2026-102672", "lastModified": "2026-10-13T16:17:09.343", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-13T16:17:09.343", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/commit/01faabfc250801a980fc94d64608046c67fc1cd9"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/commit/15e2928a5c5f01759107b414010e220d90d59cef"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/commit/a0f9ff4cc0340545008424232d49caadd9c0c767"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/commit/b8f25c4cedb2e0f5f475912b709aba19c57c26be"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/pull/50745"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/releases/tag/v39.8.10"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/releases/tag/v41.10.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/releases/tag/v42.0.0-beta.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/security/advisories/GHSA-vv43-5jgx-7qv8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,39.8.10)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[40.0.0-alpha.1,41.10.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[42.0.0-alpha.1,42.0.0-beta.2)"}}], "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": "2026-10-13T18:15:16.479523+00:00", "updated": "2026-10-13T18:15:16.479569+00:00", "vendors": ["electron", "electron$PRODUCT$electron"]}