{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42862","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-30T16:44:48.379Z","datePublished":"2026-06-08T15:25:59.588Z","dateUpdated":"2026-06-08T15:51:47.010Z"},"containers":{"cna":{"title":"Flowise: Mass Assignment in Tool Update Endpoint Allows Cross-Workspace Resource Reassignment","problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284: Improper Access Control","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-915","lang":"en","description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.6,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x5v6-pj28-cwwm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x5v6-pj28-cwwm"},{"name":"https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2","tags":["x_refsource_MISC"],"url":"https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2"}],"affected":[{"vendor":"FlowiseAI","product":"Flowise","versions":[{"version":"< 3.1.2","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-06-08T15:25:59.588Z"},"descriptions":[{"lang":"en","value":"Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, a mass assignment vulnerability exists in the tool update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating a tool resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign tools to arbitrary workspaces. This breaks tenant isolation in multi-workspace environments. This issue has been patched in version 3.1.2."}],"source":{"advisory":"GHSA-x5v6-pj28-cwwm","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x5v6-pj28-cwwm","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-08T15:51:43.138772Z","id":"CVE-2026-42862","options":[{"Exploitation":"poc"},{"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":"2026-06-08T15:51:47.010Z"}}]}}