CVE-2026-86441

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-86441", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-09-07T12:39:17.495Z", "datePublished": "2026-09-07T12:39:20.835Z", "dateUpdated": "2026-09-08T14:51:56.217Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "MISP", "programFiles": ["app/Lib/Dashboard/NewOrgsWidget.php", "app/Lib/Dashboard/OrgsContributorsGeneric.php", "app/Lib/Dashboard/OrgContributionToplistWidget.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThanOrEqual": "2.5.45", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Scottish Government - National Cyber Team"}, {"lang": "en", "type": "remediation developer", "value": "iglocska"}, {"lang": "en", "type": "remediation developer", "value": "Claude Opus 5 (1M context)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Affected versions of MISP contain inconsistent authorization checks across dashboard widgets that display organisation information.</p>\n<p>Several organisation-related widgets did not honor <code>Security.hide_organisation_index_from_users</code>. As a result, authenticated users without the <code>perm_sharing_group</code> permission could enumerate organisations even though the normal organisation index was intentionally hidden from them.</p>\n<p>The affected widgets included paths that:</p>\n<ul>\n<li>\nreturned organisation names and identifiers;\n</li>\n<li>\ncould expose additional organisation database fields through JSON export because unrestricted <code>find('all')</code> queries fetched full rows;\n</li>\n<li>\naccepted <code>limit=0</code> or negative values in a way that could effectively remove the result limit and return the entire organisation table.\n</li>\n</ul>\n<p>A related organisation-contributor leaderboard also ignored the same visibility setting. Its handler counted <code>Event.orgc_id</code> across the entire event table and mapped those IDs to organisation names, revealing every organisation with events regardless of whether the caller could see any of those events. The fix withdraws this widget entirely for users who lack organisation-index visibility.</p>Version affected: \u22642.5.45<br>"}], "value": "Affected versions of MISP contain inconsistent authorization checks across dashboard widgets that display organisation information.\n\n\nSeveral organisation-related widgets did not honor Security.hide_organisation_index_from_users. As a result, authenticated users without the perm_sharing_group permission could enumerate organisations even though the normal organisation index was intentionally hidden from them.\n\n\nThe affected widgets included paths that:\n\n\n\n * \nreturned organisation names and identifiers;\n\n\n * \ncould expose additional organisation database fields through JSON export because unrestricted find('all') queries fetched full rows;\n\n\n * \naccepted limit=0 or negative values in a way that could effectively remove the result limit and return the entire organisation table.\n\n\n\n\n\nA related organisation-contributor leaderboard also ignored the same visibility setting. Its handler counted Event.orgc_id across the entire event table and mapped those IDs to organisation names, revealing every organisation with events regardless of whether the caller could see any of those events. The fix withdraws this widget entirely for users who lack organisation-index visibility.\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": "PRESENT", "attackVector": "NETWORK", "baseScore": 2.3, "baseSeverity": "LOW", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "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"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-07T12:39:20.835Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/MISP/MISP/commit/67892d90e"}, {"tags": ["patch"], "url": "https://github.com/MISP/MISP/commit/5e333a159.patch"}], "source": {"discovery": "UNKNOWN"}, "title": "MISP Dashboard Organisation Widgets Bypass Organisation-Index Restrictions and Expose Hidden Organisation Data", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-08T14:51:48.250369Z", "id": "CVE-2026-86441", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-08T14:51:56.217Z"}}]}}

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As a result, authenticated users without the perm_sharing_group permission could enumerate organisations even though the normal organisation index was intentionally hidden from them.\n\n\nThe affected widgets included paths that:\n\n\n\n * \nreturned organisation names and identifiers;\n\n\n * \ncould expose additional organisation database fields through JSON export because unrestricted find('all') queries fetched full rows;\n\n\n * \naccepted limit=0 or negative values in a way that could effectively remove the result limit and return the entire organisation table.\n\n\n\n\n\nA related organisation-contributor leaderboard also ignored the same visibility setting. Its handler counted Event.orgc_id across the entire event table and mapped those IDs to organisation names, revealing every organisation with events regardless of whether the caller could see any of those events. The fix withdraws this widget entirely for users who lack organisation-index visibility.\n\nVersion affected: \u22642.5.45", "supportingMedia": [{"type": "text/html", "value": "<p>Affected versions of MISP contain inconsistent authorization checks across dashboard widgets that display organisation information.</p>\n<p>Several organisation-related widgets did not honor <code>Security.hide_organisation_index_from_users</code>. As a result, authenticated users without the <code>perm_sharing_group</code> permission could enumerate organisations even though the normal organisation index was intentionally hidden from them.</p>\n<p>The affected widgets included paths that:</p>\n<ul>\n<li>\nreturned organisation names and identifiers;\n</li>\n<li>\ncould expose additional organisation database fields through JSON export because unrestricted <code>find('all')</code> queries fetched full rows;\n</li>\n<li>\naccepted <code>limit=0</code> or negative values in a way that could effectively remove the result limit and return the entire organisation table.\n</li>\n</ul>\n<p>A related organisation-contributor leaderboard also ignored the same visibility setting. Its handler counted <code>Event.orgc_id</code> across the entire event table and mapped those IDs to organisation names, revealing every organisation with events regardless of whether the caller could see any of those events. The fix withdraws this widget entirely for users who lack organisation-index visibility.</p>Version affected: \u22642.5.45<br>", "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"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-07T12:39:20.835Z"}}}, "cveMetadata": {"cveId": "CVE-2026-86441", "state": "PUBLISHED", "dateUpdated": "2026-09-08T14:51:56.217Z", "dateReserved": "2026-09-07T12:39:17.495Z", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "datePublished": "2026-09-07T12:39:20.835Z", "assignerShortName": "CIRCL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "MISP", "programFiles": ["app/Lib/Dashboard/NewOrgsWidget.php", "app/Lib/Dashboard/OrgsContributorsGeneric.php", "app/Lib/Dashboard/OrgContributionToplistWidget.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThanOrEqual": "2.5.45", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:misp-project:misp:*:*:*:*:*:*:*:*", "matchCriteriaId": "92BCFD36-804A-4278-B718-69DC45796F21", "versionEndIncluding": "2.5.45", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Affected versions of MISP contain inconsistent authorization checks across dashboard widgets that display organisation information.\n\n\nSeveral organisation-related widgets did not honor Security.hide_organisation_index_from_users. As a result, authenticated users without the perm_sharing_group permission could enumerate organisations even though the normal organisation index was intentionally hidden from them.\n\n\nThe affected widgets included paths that:\n\n\n\n * \nreturned organisation names and identifiers;\n\n\n * \ncould expose additional organisation database fields through JSON export because unrestricted find('all') queries fetched full rows;\n\n\n * \naccepted limit=0 or negative values in a way that could effectively remove the result limit and return the entire organisation table.\n\n\n\n\n\nA related organisation-contributor leaderboard also ignored the same visibility setting. Its handler counted Event.orgc_id across the entire event table and mapped those IDs to organisation names, revealing every organisation with events regardless of whether the caller could see any of those events. The fix withdraws this widget entirely for users who lack organisation-index visibility.\n\nVersion affected: \u22642.5.45"}], "id": "CVE-2026-86441", "lastModified": "2026-09-09T15:24:22.190", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.3, "baseSeverity": "LOW", "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:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/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": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-86441", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-08T14:51:48.250369Z", "version": "2.0.3"}}]}, "published": "2026-09-07T13:20:43.287", "references": [{"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "tags": ["Patch"], "url": "https://github.com/MISP/MISP/commit/5e333a159.patch"}, {"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "tags": ["Patch"], "url": "https://github.com/MISP/MISP/commit/67892d90e"}], "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-862"}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.5.45]"}}], "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": "2026-09-07T14:15:16.833094+00:00", "updated": "2026-09-07T14:45:16.926011+00:00", "vendors": ["misp", "misp$PRODUCT$misp"]}