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CVE-2026-91930

Estado: AplazadaAlta (7.7)—

Flowise before 3.1.4 fails to scope enterprise organization and workspace membership APIs to the caller's tenant, allowing authenticated users to supply arbitrary organization IDs. Attackers can add themselves as organization owners, create workspaces, and gain administrative access to victim organizations by exploiting insufficient tenant isolation in the organizationuser and workspace endpoints.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Flowise permite a usuarios autenticados acceso remoto a APIs sin aislamiento de tenant (PR:L). Impactos: creación de cuentas administrativas (T1098.003), crear workspaces (T1136) y modificar controles de acceso (T1556).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementMulti-factor AuthenticationUser Account ManagementOperating System ConfigurationNetwork SegmentationVulnerability Scanning

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Flowiseai — FlowiseAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-91930",
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          "id": "CVE-2026-91930",
          "role": "CISA Coordinator",
          "options": [
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          "integrityImpact": "HIGH",
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          "Safety": "NOT_DEFINED",
          "version": "4.0",
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          "attackVector": "NETWORK",
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          "valueDensity": "NOT_DEFINED",
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          "modifiedAttackVector": "NOT_DEFINED",
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          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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      "affectedData": [
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          "vendor": "FlowiseAI",
          "product": "Flowise",
          "versions": [
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              "version": "0",
              "lessThan": "3.1.4",
              "versionType": "semver"
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  "published": "2026-09-15T16:17:43.743",
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      "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-pprx-4prj-35mj",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.vulncheck.com/advisories/flowise-before-3.1.4-cross-tenant-organization-admin-takeover",
      "source": "disclosure@vulncheck.com"
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "description": [
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          "value": "CWE-266"
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    {
      "lang": "en",
      "value": "Flowise before 3.1.4 fails to scope enterprise organization and workspace membership APIs to the caller's tenant, allowing authenticated users to supply arbitrary organization IDs. Attackers can add themselves as organization owners, create workspaces, and gain administrative access to victim organizations by exploiting insufficient tenant isolation in the organizationuser and workspace endpoints."
    }
  ],
  "lastModified": "2026-09-23T17:17:47.063",
  "sourceIdentifier": "disclosure@vulncheck.com"
}