{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-123307", "assignerOrgId": "547ada31-17d8-4964-bc5f-1b8238ba8014", "state": "PUBLISHED", "assignerShortName": "JetBrains", "dateReserved": "2026-11-05T18:38:22.863Z", "datePublished": "2026-11-06T10:28:00.312Z", "dateUpdated": "2026-11-06T10:28:00.312Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "547ada31-17d8-4964-bc5f-1b8238ba8014", "shortName": "JetBrains", "dateUpdated": "2026-11-06T10:28:00.312Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-918", "cweId": "CWE-918"}]}], "affected": [{"vendor": "JetBrains", "product": "IntelliJ IDEA", "versions": [{"version": "0", "status": "affected", "lessThan": "2026.3, \n2026.2.4", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "In JetBrains IntelliJ IDEA before 2026.3, \n2026.2.4 unauthenticated connection to an arbitrary host via run configurations was possible"}], "references": [{"url": "https://www.jetbrains.com/privacy-security/issues-fixed/"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"}}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "IntelliJ IDEA", "vendor": "JetBrains", "versions": [{"lessThan": "2026.3, \n2026.2.4", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "cve@jetbrains.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In JetBrains IntelliJ IDEA before 2026.3, \n2026.2.4 unauthenticated connection to an arbitrary host via run configurations was possible"}], "id": "CVE-2026-123307", "lastModified": "2026-11-06T11:17:09.727", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.2, "source": "cve@jetbrains.com", "type": "Secondary"}]}, "published": "2026-11-06T11:17:09.727", "references": [{"source": "cve@jetbrains.com", "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"}], "sourceIdentifier": "cve@jetbrains.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "cve@jetbrains.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "IntelliJ IDEA", "source": "cna", "vendor": "JetBrains"}, "product": "intellij_idea", "vendor": "jetbrains"}], "created": "2026-11-06T11:45:02.669476+00:00", "title": "Unauthenticated External Connections via Run Configurations in IntelliJ IDEA", "updated": "2026-11-06T12:00:05.065034+00:00", "vendors": ["jetbrains", "jetbrains$PRODUCT$intellij_idea"]}