CVE-2026-8027 (GCVE-0-2026-8027)

Vulnerability from cvelistv5 – Published: 2026-05-06 13:45 – Updated: 2026-05-06 15:26
VLAI
Title
FlowiseAI Flowise User Controller authorization
Summary
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.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-06 15:26 UTC
CWE
References
URL Tags
https://vuldb.com/vuln/361274 vdb-entrytechnical-description
https://vuldb.com/vuln/361274/cti signaturepermissions-required
https://vuldb.com/submit/777657 third-party-advisory
https://gist.github.com/YLChen-007/3584e6ffa0bba6… related
Impacted products
Vendor Product Version CPE status
FlowiseAI Flowise Affected: 3.0.0
Affected: 3.0.1
Affected: 3.0.2
Affected: 3.0.3
Affected: 3.0.4
Affected: 3.0.5
Affected: 3.0.6
Affected: 3.0.7
Affected: 3.0.8
Affected: 3.0.9
Affected: 3.0.10
Affected: 3.0.11
Affected: 3.0.12
    cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*
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Show details on NVD website

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              "name": "Submit #777657 | FlowiseAI Flowise \u003c= 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"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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