CVE-2026-90895

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90895", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-09-14T09:40:52.456Z", "datePublished": "2026-09-14T09:40:55.800Z", "dateUpdated": "2026-09-14T10:26:12.372Z"}, "containers": {"cna": {"affected": [{"modules": ["app/Console/Command/CLIShell/"], "product": "MISP", "programFiles": ["app/Console/Command/CLIShell.php", "app/Console/Command/CLIShell/cli_attributes.php", "app/Console/Command/CLIShell/cli_common.php", "app/Console/Command/CLIShell/cli_events.php", "app/Console/Command/CLIShell/cli_objects.php", "app/Console/Command/CLIShell/cli_organisations.php", "app/Console/Command/CLIShell/cli_roles.php", "app/Console/Command/CLIShell/cli_tags.php", "app/Console/Command/CLIShell/cli_users.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 Opus 4.8"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p></p><p>Affected versions of MISP\u2019s interactive CLI shell implement access control independently from the normal web application, causing several authorization inconsistencies.</p>\n<p>The patch shows that CLI access could differ from the web application in multiple security-sensitive areas:</p>\u2003- feed listings did not enforce the same <code>lookup_visible</code> restrictions for non-host-organisation users;<br>\u2003- feed detail access did not enforce the same host-organisation/site-admin authorization as <code>FeedsController::view()</code>;<br><code>\u2003- Feed.headers</code>, which can contain HTTP authorization credentials, could be exposed instead of being hidden or masked;<br>\u2003- server synchronization <code>authkey</code> values were not explicitly hidden from CLI detail output;<br>\u2003- sharing-group detail access did not consistently use <code>SharingGroup::checkIfAuthorised()</code>;<br>\u2003- the <code>use</code> command could establish context for a record without first proving that the user was authorized to view that record<ul>\n</ul><p>The commit additionally hardens pagination and terminal rendering, including neutralization of terminal control sequences found in database-backed values. Those are important hardening changes, but the main vulnerability is the CLI authorization/data-disclosure mismatch.</p><p>Version affected: \u22642.5.45<br></p><p></p>"}], "value": "Affected versions of MISP\u2019s interactive CLI shell implement access control independently from the normal web application, causing several authorization inconsistencies.\n\n\nThe patch shows that CLI access could differ from the web application in multiple security-sensitive areas:\n\n\u2003- feed listings did not enforce the same lookup_visible restrictions for non-host-organisation users;\n\u2003- feed detail access did not enforce the same host-organisation/site-admin authorization as FeedsController::view();\n\u2003- Feed.headers, which can contain HTTP authorization credentials, could be exposed instead of being hidden or masked;\n\u2003- server synchronization authkey values were not explicitly hidden from CLI detail output;\n\u2003- sharing-group detail access did not consistently use SharingGroup::checkIfAuthorised();\n\u2003- the use command could establish context for a record without first proving that the user was authorized to view that record\n\n\nThe commit additionally hardens pagination and terminal rendering, including neutralization of terminal control sequences found in database-backed values. Those are important hardening changes, but the main vulnerability is the CLI authorization/data-disclosure mismatch.\n\nVersion affected: \u22642.5.45"}], "impacts": [{"capecId": "CAPEC-1", "descriptions": [{"lang": "en", "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "baseScore": 8.4, "baseSeverity": "HIGH", "privilegesRequired": "LOW", "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:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "description": "CWE-862 Missing Authorization", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-200", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-150", "description": "CWE-150 Improper Neutralization of Escape, Quote, or Control Sequences", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-522", "description": "CWE-522 Insufficiently Protected Credentials", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-14T09:40:55.800Z"}, "references": [{"name": "Security patch", "tags": ["patch"], "url": "https://github.com/MISP/MISP/commit/cd9f548ed"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The fix replaces the shell's hand-rolled authorization logic with the same model-level accessors used by the web interface (Event::fetchSimpleEvent, MispAttribute::fetchAttributes, MispObject::fetchObjects, SharingGroup::checkIfAuthorised, Organisation::canSee), ensuring read and write operations enforce identical ACL rules. Credential columns are excluded at the query level via a hiddenFields mechanism so they are never fetched from the database. The inline detail editor now delegates to the entity-specific edit handlers, which enforce per-record write authorization. All terminal output passes through a sanitiser that neutralises C0/C1 control characters, ANSI escape sequences, and Unicode bidirectional overrides. Pagination is clamped to a safe range (1-1000) to prevent unbounded result sets.</p>"}], "value": "The fix replaces the shell's hand-rolled authorization logic with the same model-level accessors used by the web interface (Event::fetchSimpleEvent, MispAttribute::fetchAttributes, MispObject::fetchObjects, SharingGroup::checkIfAuthorised, Organisation::canSee), ensuring read and write operations enforce identical ACL rules. Credential columns are excluded at the query level via a hiddenFields mechanism so they are never fetched from the database. The inline detail editor now delegates to the entity-specific edit handlers, which enforce per-record write authorization. All terminal output passes through a sanitiser that neutralises C0/C1 control characters, ANSI escape sequences, and Unicode bidirectional overrides. Pagination is clamped to a safe range (1-1000) to prevent unbounded result sets."}], "title": "MISP Interactive CLI Shell: Authorization Bypass, Credential Exposure, and Terminal Injection", "x_gcve": [{"extensions": {"bcp-05-x-01": {"ai_annotations": [{"ai_level": "generated", "description": "Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. 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AC:L: No race conditions or special timing are needed; the unguarded write path and missing ACL checks are deterministic. AT:N: The authorization bypass and credential exposure require no target interaction. PR:L: Any authenticated MISP user with basic permissions (perm_add) can exploit the write bypass and read credential columns. UI:N: The core authorization bypass and data exposure do not require the victim to perform any action. VC:H: Sensitive credentials (feed HTTP auth, server sync key, user passwords/TOTP) are exposed. VI:H: An attacker can modify events, attributes, and objects they should not be able to change. VA:H: An attacker can read records (feeds, organisations, hidden tags) outside their authorized scope. SC/SI/SA:N: Impact is confined to the local MISP instance and its data.", "draft": false, "fixSummary": "The fix replaces the shell's hand-rolled authorization logic with the same model-level accessors used by the web interface (Event::fetchSimpleEvent, MispAttribute::fetchAttributes, MispObject::fetchObjects, SharingGroup::checkIfAuthorised, Organisation::canSee), ensuring read and write operations enforce identical ACL rules. Credential columns are excluded at the query level via a hiddenFields mechanism so they are never fetched from the database. The inline detail editor now delegates to the entity-specific edit handlers, which enforce per-record write authorization. All terminal output passes through a sanitiser that neutralises C0/C1 control characters, ANSI escape sequences, and Unicode bidirectional overrides. 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Credential columns are excluded at the query level via a hiddenFields mechanism so they are never fetched from the database. The inline detail editor now delegates to the entity-specific edit handlers, which enforce per-record write authorization. All terminal output passes through a sanitiser that neutralises C0/C1 control characters, ANSI escape sequences, and Unicode bidirectional overrides. Pagination is clamped to a safe range (1-1000) to prevent unbounded result sets.", "supportingMedia": [{"type": "text/html", "value": "<p>The fix replaces the shell's hand-rolled authorization logic with the same model-level accessors used by the web interface (Event::fetchSimpleEvent, MispAttribute::fetchAttributes, MispObject::fetchObjects, SharingGroup::checkIfAuthorised, Organisation::canSee), ensuring read and write operations enforce identical ACL rules. Credential columns are excluded at the query level via a hiddenFields mechanism so they are never fetched from the database. The inline detail editor now delegates to the entity-specific edit handlers, which enforce per-record write authorization. All terminal output passes through a sanitiser that neutralises C0/C1 control characters, ANSI escape sequences, and Unicode bidirectional overrides. Pagination is clamped to a safe range (1-1000) to prevent unbounded result sets.</p>", "base64": false}]}], "references": [{"url": "https://github.com/MISP/MISP/commit/cd9f548ed", "name": "Security patch", "tags": ["patch"]}], "descriptions": [{"lang": "en", "value": "Affected versions of MISP\u2019s interactive CLI shell implement access control independently from the normal web application, causing several authorization inconsistencies.\n\n\nThe patch shows that CLI access could differ from the web application in multiple security-sensitive areas:\n\n\u2003- feed listings did not enforce the same lookup_visible restrictions for non-host-organisation users;\n\u2003- feed detail access did not enforce the same host-organisation/site-admin authorization as FeedsController::view();\n\u2003- Feed.headers, which can contain HTTP authorization credentials, could be exposed instead of being hidden or masked;\n\u2003- server synchronization authkey values were not explicitly hidden from CLI detail output;\n\u2003- sharing-group detail access did not consistently use SharingGroup::checkIfAuthorised();\n\u2003- the use command could establish context for a record without first proving that the user was authorized to view that record\n\n\nThe commit additionally hardens pagination and terminal rendering, including neutralization of terminal control sequences found in database-backed values. Those are important hardening changes, but the main vulnerability is the CLI authorization/data-disclosure mismatch.\n\nVersion affected: \u22642.5.45", "supportingMedia": [{"type": "text/html", "value": "<p></p><p>Affected versions of MISP\u2019s interactive CLI shell implement access control independently from the normal web application, causing several authorization inconsistencies.</p>\n<p>The patch shows that CLI access could differ from the web application in multiple security-sensitive areas:</p>\u2003- feed listings did not enforce the same <code>lookup_visible</code> restrictions for non-host-organisation users;<br>\u2003- feed detail access did not enforce the same host-organisation/site-admin authorization as <code>FeedsController::view()</code>;<br><code>\u2003- Feed.headers</code>, which can contain HTTP authorization credentials, could be exposed instead of being hidden or masked;<br>\u2003- server synchronization <code>authkey</code> values were not explicitly hidden from CLI detail output;<br>\u2003- sharing-group detail access did not consistently use <code>SharingGroup::checkIfAuthorised()</code>;<br>\u2003- the <code>use</code> command could establish context for a record without first proving that the user was authorized to view that record<ul>\n</ul><p>The commit additionally hardens pagination and terminal rendering, including neutralization of terminal control sequences found in database-backed values. Those are important hardening changes, but the main vulnerability is the CLI authorization/data-disclosure mismatch.</p><p>Version affected: \u22642.5.45<br></p><p></p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-862", "description": "CWE-862 Missing Authorization"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-200", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-150", "description": "CWE-150 Improper Neutralization of Escape, Quote, or Control Sequences"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-522", "description": "CWE-522 Insufficiently Protected Credentials"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-14T09:40:55.800Z"}}}, "cveMetadata": {"cveId": "CVE-2026-90895", "state": "PUBLISHED", "dateUpdated": "2026-09-14T10:26:12.372Z", "dateReserved": "2026-09-14T09:40:52.456Z", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "datePublished": "2026-09-14T09:40:55.800Z", "assignerShortName": "CIRCL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"modules": ["app/Console/Command/CLIShell/"], "product": "MISP", "programFiles": ["app/Console/Command/CLIShell.php", "app/Console/Command/CLIShell/cli_attributes.php", "app/Console/Command/CLIShell/cli_common.php", "app/Console/Command/CLIShell/cli_events.php", "app/Console/Command/CLIShell/cli_objects.php", "app/Console/Command/CLIShell/cli_organisations.php", "app/Console/Command/CLIShell/cli_roles.php", "app/Console/Command/CLIShell/cli_tags.php", "app/Console/Command/CLIShell/cli_users.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 implement access control independently from the normal web application, causing several authorization inconsistencies.\n\n\nThe patch shows that CLI access could differ from the web application in multiple security-sensitive areas:\n\n\u2003- feed listings did not enforce the same lookup_visible restrictions for non-host-organisation users;\n\u2003- feed detail access did not enforce the same host-organisation/site-admin authorization as FeedsController::view();\n\u2003- Feed.headers, which can contain HTTP authorization credentials, could be exposed instead of being hidden or masked;\n\u2003- server synchronization authkey values were not explicitly hidden from CLI detail output;\n\u2003- sharing-group detail access did not consistently use SharingGroup::checkIfAuthorised();\n\u2003- the use command could establish context for a record without first proving that the user was authorized to view that record\n\n\nThe commit additionally hardens pagination and terminal rendering, including neutralization of terminal control sequences found in database-backed values. Those are important hardening changes, but the main vulnerability is the CLI authorization/data-disclosure mismatch.\n\nVersion affected: \u22642.5.45"}], "id": "CVE-2026-90895", "lastModified": "2026-09-16T13:42:47.933", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.4, "baseSeverity": "HIGH", "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": "LOW", "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:L/UI:N/VC:H/VI:H/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": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-90895", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-14T10:24:27.267671Z", "version": "2.0.3"}}]}, "published": "2026-09-14T10:17:06.270", "references": [{"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "url": "https://github.com/MISP/MISP/commit/cd9f548ed"}], "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-150"}, {"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-522"}, {"lang": "en", "value": "CWE-862"}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2.5.46)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "MISP", "source": "cna", "vendor": "MISP"}, "product": "misp", "vendor": "misp"}], "created": "2026-09-14T10:30:17.917309+00:00", "updated": "2026-09-15T14:45:11.412728+00:00", "vendors": ["misp", "misp$PRODUCT$misp"]}