{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90955", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-09-14T12:37:52.348Z", "datePublished": "2026-09-14T12:37:54.001Z", "dateUpdated": "2026-09-14T13:00:29.069Z"}, "containers": {"cna": {"affected": [{"modules": ["CLIShell (app/Console/Command/CLIShell)", "SysLogLogableBehavior (app/Plugin/SysLogLogable/Model/Behavior)"], "product": "MISP", "programFiles": ["app/Console/Command/CLIShell.php", "app/Console/Command/CLIShell/cli_common.php", "app/Console/Command/CLIShell/cli_users.php", "app/Plugin/SysLogLogable/Model/Behavior/SysLogLogableBehavior.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThan": "2.5.46", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Scottish Government - National Cyber Team"}, {"lang": "en", "type": "remediation developer", "value": "iglocska"}, {"lang": "en", "type": "remediation developer", "value": "Claude Fable 5.1"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p></p><p>Affected versions of MISP\u2019s interactive CLI shell do not reliably preserve the identity of the impersonated MISP user across audit logging.</p>\n<p>The shell is designed to run actions as a supplied MISP user ID. 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Consequently, subsequent CLI writes could lose the intended user attribution and be logged incorrectly. The commit also notes that CLI-originated records lacked a CLI marker, making them appear similar to ordinary web actions by that user.\n\n\n\nVersion affected: \u22642.5.45", "supportingMedia": [{"type": "text/html", "value": "<p></p><p>Affected versions of MISP\u2019s interactive CLI shell do not reliably preserve the identity of the impersonated MISP user across audit logging.</p>\n<p>The shell is designed to run actions as a supplied MISP user ID. However, the legacy <code>SysLogLogable</code> behavior stored that identity in behavior-instance state that could be overwritten when another model lazily attached the shared behavior. Consequently, subsequent CLI writes could lose the intended user attribution and be logged incorrectly. The commit also notes that CLI-originated records lacked a CLI marker, making them appear similar to ordinary web actions by that user.</p><p></p><p>Version affected: \u22642.5.45<br></p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-778", "description": "CWE-778 Insufficient Logging"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-223", "description": "CWE-223 Omission of Security-relevant Information in Log Data"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-14T12:37:54.001Z"}}}, "cveMetadata": {"cveId": "CVE-2026-90955", "state": "PUBLISHED", "dateUpdated": "2026-09-14T13:00:29.069Z", "dateReserved": "2026-09-14T12:37:52.348Z", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "datePublished": "2026-09-14T12:37:54.001Z", "assignerShortName": "CIRCL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"modules": ["CLIShell (app/Console/Command/CLIShell)", "SysLogLogableBehavior (app/Plugin/SysLogLogable/Model/Behavior)"], "product": "MISP", "programFiles": ["app/Console/Command/CLIShell.php", "app/Console/Command/CLIShell/cli_common.php", "app/Console/Command/CLIShell/cli_users.php", "app/Plugin/SysLogLogable/Model/Behavior/SysLogLogableBehavior.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThan": "2.5.46", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Affected versions of MISP\u2019s interactive CLI shell do not reliably preserve the identity of the impersonated MISP user across audit logging.\n\n\nThe shell is designed to run actions as a supplied MISP user ID. However, the legacy SysLogLogable behavior stored that identity in behavior-instance state that could be overwritten when another model lazily attached the shared behavior. Consequently, subsequent CLI writes could lose the intended user attribution and be logged incorrectly. The commit also notes that CLI-originated records lacked a CLI marker, making them appear similar to ordinary web actions by that user.\n\n\n\nVersion affected: \u22642.5.45"}], "id": "CVE-2026-90955", "lastModified": "2026-09-16T13:42:47.777", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 4.6, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-90955", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-14T12:55:46.663079Z", "version": "2.0.3"}}]}, "published": "2026-09-14T13:19:32.583", "references": [{"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "url": "https://github.com/MISP/MISP/commit/d13e5db33"}], "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-223"}, {"lang": "en", "value": "CWE-778"}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}]}

{}