CVE-2026-123854

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-123854", "assignerOrgId": "547ada31-17d8-4964-bc5f-1b8238ba8014", "state": "PUBLISHED", "assignerShortName": "JetBrains", "dateReserved": "2026-11-06T16:05:47.709Z", "datePublished": "2026-11-06T16:10:11.837Z", "dateUpdated": "2026-11-08T01:01:31.955Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "547ada31-17d8-4964-bc5f-1b8238ba8014", "shortName": "JetBrains", "dateUpdated": "2026-11-06T16:10:11.837Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-829", "cweId": "CWE-829"}]}], "affected": [{"vendor": "JetBrains", "product": "PyCharm", "versions": [{"version": "0", "status": "affected", "lessThan": "2026.3", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "In JetBrains PyCharm before 2026.3 code execution was possible in Safe Mode via a crafted Jupyter notebook widget module"}], "references": [{"url": "https://www.jetbrains.com/privacy-security/issues-fixed/"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-07T04:55:47.026336Z", "id": "CVE-2026-123854", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-08T01:01:31.955Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-123854", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-11-07T04:55:47.026336Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-06T16:46:21.783Z"}}], "cna": {"metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "JetBrains", "product": "PyCharm", "versions": [{"status": "affected", "version": "0", "lessThan": "2026.3", "versionType": "semver"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.jetbrains.com/privacy-security/issues-fixed/"}], "descriptions": [{"lang": "en", "value": "In JetBrains PyCharm before 2026.3 code execution was possible in Safe Mode via a crafted Jupyter notebook widget module"}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-829", "description": "CWE-829"}]}], "providerMetadata": {"orgId": "547ada31-17d8-4964-bc5f-1b8238ba8014", "shortName": "JetBrains", "dateUpdated": "2026-11-06T16:10:11.837Z"}}}, "cveMetadata": {"cveId": "CVE-2026-123854", "state": "PUBLISHED", "dateUpdated": "2026-11-07T04:55:46.206Z", "dateReserved": "2026-11-06T16:05:47.709Z", "assignerOrgId": "547ada31-17d8-4964-bc5f-1b8238ba8014", "datePublished": "2026-11-06T16:10:11.837Z", "assignerShortName": "JetBrains"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "PyCharm", "vendor": "JetBrains", "versions": [{"lessThan": "2026.3", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "cve@jetbrains.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In JetBrains PyCharm before 2026.3 code execution was possible in Safe Mode via a crafted Jupyter notebook widget module"}], "id": "CVE-2026-123854", "lastModified": "2026-11-08T01:16:36.923", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "cve@jetbrains.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-123854", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-07T04:55:47.026336Z", "version": "2.0.3"}}]}, "published": "2026-11-06T17:17:24.577", "references": [{"source": "cve@jetbrains.com", "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"}], "sourceIdentifier": "cve@jetbrains.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-829"}], "source": "cve@jetbrains.com", "type": "Secondary"}]}

{}

{"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": "PyCharm", "source": "cna", "vendor": "JetBrains"}, "product": "pycharm", "vendor": "jetbrains"}], "created": "2026-11-06T18:30:09.443878+00:00", "title": "PyCharm Safe Mode Code Execution via Jupyter Widget Module", "updated": "2026-11-06T20:00:10.227045+00:00", "vendors": ["jetbrains", "jetbrains$PRODUCT$pycharm"]}