{"api_version":"1","generated_at":"2026-07-23T11:24:07+00:00","cve":"CVE-2026-8027","urls":{"html":"https://cve.report/CVE-2026-8027","api":"https://cve.report/api/cve/CVE-2026-8027.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-8027","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-8027"},"summary":{"title":"FlowiseAI Flowise User Controller authorization","description":"A weakness has been identified in FlowiseAI Flowise up to 3.0.12. Affected by this vulnerability is an unknown functionality of the component User Controller Handler. This manipulation of the argument userId/organizationId/workspaceId/email causes authorization bypass. The attack may be initiated remotely. The affected component should be upgraded.","state":"PUBLISHED","assigner":"VulDB","published_at":"2026-05-06 15:16:13","updated_at":"2026-05-07 14:50:57"},"problem_types":["CWE-285","CWE-639","CWE-639 Authorization Bypass","CWE-285 Improper Authorization"],"metrics":[{"version":"4.0","source":"cna@vuldb.com","type":"Secondary","score":"5.3","severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/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","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/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","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}},{"version":"4.0","source":"CNA","type":"DECLARED","score":"5.3","severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X","data":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X","version":"4.0"}},{"version":"3.1","source":"cna@vuldb.com","type":"Secondary","score":"4.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"4.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C","data":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C","version":"3.1"}},{"version":"3.0","source":"CNA","type":"DECLARED","score":"4.3","severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C","data":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C","version":"3.0"}},{"version":"2.0","source":"cna@vuldb.com","type":"Secondary","score":"4","severity":"","vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:P/I:N/A:N","baseScore":4,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"2.0","source":"CNA","type":"DECLARED","score":"4","severity":"","vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N/E:ND/RL:OF/RC:C","data":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:P/I:N/A:N/E:ND/RL:OF/RC:C","version":"2.0"}}],"references":[{"url":"https://gist.github.com/YLChen-007/3584e6ffa0bba6367328ecf0b46b0e4b","name":"https://gist.github.com/YLChen-007/3584e6ffa0bba6367328ecf0b46b0e4b","refsource":"cna@vuldb.com","tags":["Exploit","Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/vuln/361274/cti","name":"https://vuldb.com/vuln/361274/cti","refsource":"cna@vuldb.com","tags":["Permissions Required","VDB Entry"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/vuln/361274","name":"https://vuldb.com/vuln/361274","refsource":"cna@vuldb.com","tags":["Third Party Advisory","VDB Entry"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/submit/777657","name":"https://vuldb.com/submit/777657","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Third Party Advisory","VDB Entry"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-8027","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8027","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.0","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.1","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.2","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.3","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.4","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.5","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.6","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.7","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.8","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.9","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.10","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.11","platforms":[]},{"source":"CNA","vendor":"FlowiseAI","product":"Flowise","version":"affected 3.0.12","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-05-06T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"source":"CNA","time":"2026-05-06T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"source":"CNA","time":"2026-05-06T09:45:42.000Z","lang":"en","value":"VulDB entry last update"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Eric-a (VulDB User)","lang":"en"}],"nvd_cpes":[{"cve_year":"2026","cve_id":"8027","vulnerable":"1","versionEndIncluding":"3.0.12","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"flowiseai","cpe5":"flowise","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"8027","cve":"CVE-2026-8027","epss":"0.000260000","percentile":"0.074460000","score_date":"2026-05-12","updated_at":"2026-05-13 00:11:54"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-8027","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-05-06T15:26:18.914004Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-05-06T15:26:30.808Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["exploit"],"url":"https://vuldb.com/submit/777657"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"cpes":["cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*"],"modules":["User Controller Handler"],"product":"Flowise","vendor":"FlowiseAI","versions":[{"status":"affected","version":"3.0.0"},{"status":"affected","version":"3.0.1"},{"status":"affected","version":"3.0.2"},{"status":"affected","version":"3.0.3"},{"status":"affected","version":"3.0.4"},{"status":"affected","version":"3.0.5"},{"status":"affected","version":"3.0.6"},{"status":"affected","version":"3.0.7"},{"status":"affected","version":"3.0.8"},{"status":"affected","version":"3.0.9"},{"status":"affected","version":"3.0.10"},{"status":"affected","version":"3.0.11"},{"status":"affected","version":"3.0.12"}]}],"credits":[{"lang":"en","type":"reporter","value":"Eric-a (VulDB User)"}],"descriptions":[{"lang":"en","value":"A weakness has been identified in FlowiseAI Flowise up to 3.0.12. Affected by this vulnerability is an unknown functionality of the component User Controller Handler. This manipulation of the argument userId/organizationId/workspaceId/email causes authorization bypass. The attack may be initiated remotely. The affected component should be upgraded."}],"metrics":[{"cvssV4_0":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X","version":"4.0"}},{"cvssV3_1":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C","version":"3.1"}},{"cvssV3_0":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C","version":"3.0"}},{"cvssV2_0":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:P/I:N/A:N/E:ND/RL:OF/RC:C","version":"2.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","description":"Authorization Bypass","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-285","description":"Improper Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-06T13:45:10.213Z","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB"},"references":[{"name":"VDB-361274 | FlowiseAI Flowise User Controller authorization","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/361274"},{"name":"VDB-361274 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/361274/cti"},{"name":"Submit #777657 | FlowiseAI Flowise <= 3.0.12 Authorization Bypass Through User-Controlled Key (CWE-639)","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/777657"},{"tags":["related"],"url":"https://gist.github.com/YLChen-007/3584e6ffa0bba6367328ecf0b46b0e4b"}],"timeline":[{"lang":"en","time":"2026-05-06T00:00:00.000Z","value":"Advisory disclosed"},{"lang":"en","time":"2026-05-06T02:00:00.000Z","value":"VulDB entry created"},{"lang":"en","time":"2026-05-06T09:45:42.000Z","value":"VulDB entry last update"}],"title":"FlowiseAI Flowise User Controller authorization"}},"cveMetadata":{"assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","assignerShortName":"VulDB","cveId":"CVE-2026-8027","datePublished":"2026-05-06T13:45:10.213Z","dateReserved":"2026-05-06T07:40:34.416Z","dateUpdated":"2026-05-06T15:26:30.808Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-06 15:16:13","lastModifiedDate":"2026-05-07 14:50:57","problem_types":["CWE-285","CWE-639","CWE-639 Authorization Bypass","CWE-285 Improper Authorization"],"metrics":{"cvssMetricV40":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/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","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"cvssMetricV2":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:P/I:N/A:N","baseScore":4,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*","versionEndIncluding":"3.0.12","matchCriteriaId":"2814BF9D-05F5-48AC-AA29-250D429CFCFF"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"8027","Ordinal":"1","Title":"FlowiseAI Flowise User Controller authorization","CVE":"CVE-2026-8027","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"8027","Ordinal":"1","NoteData":"A weakness has been identified in FlowiseAI Flowise up to 3.0.12. Affected by this vulnerability is an unknown functionality of the component User Controller Handler. This manipulation of the argument userId/organizationId/workspaceId/email causes authorization bypass. The attack may be initiated remotely. The affected component should be upgraded.","Type":"Description","Title":"FlowiseAI Flowise User Controller authorization"}]}}}