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vuln-cve/data/2026/42xxx/CVE-2026-42861.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-42861",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-30T16:44:48.379Z",
"datePublished": "2026-06-08T15:25:47.669Z",
"dateUpdated": "2026-06-09T15:28:06.366Z"
},
"containers": {
"cna": {
"title": "Flowise: Mass Assignment in Variable 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-6fw7-3q8r-m5vj",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6fw7-3q8r-m5vj"
},
{
"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": "2026-06-08T15:25:47.669Z"
},
"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 variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating a variable resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign variables to arbitrary workspaces. This behavior may break tenant isolation in multi-workspace environments. This issue has been patched in version 3.1.2."
}
],
"source": {
"advisory": "GHSA-6fw7-3q8r-m5vj",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-06-09T15:27:50.174421Z",
"id": "CVE-2026-42861",
"options": [
{
"Exploitation": "poc"
},
{
"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": "2026-06-09T15:28:06.366Z"
}
}
]
}
}