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High

Flowise before 3.1.4 Cross-Tenant Authorization Bypass

Type: advisorySources: OSV

Flowise versions before 3.1.4 contain cross-tenant authorization gaps in Enterprise endpoints that fail to verify resource ownership before operations. Attackers with Enterprise access can delete arbitrary workspaces, invite themselves into other organizations, modify cross-org roles, and abuse stored SSO secrets.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-91929
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 02:48 UTC · Revision 1

Source evidence

Flowise before 3.1.4 Cross-Tenant Authorization Bypass

core-osv · Original source

Published 15 Sept 2026, 15:17 UTC

Flowise versions before 3.1.4 contain cross-tenant authorization gaps in Enterprise endpoints that fail to verify resource ownership before operations. Attackers with Enterprise access can delete arbitrary workspaces, invite themselves into other organizations, modify cross-org roles, and abuse stored SSO secrets.

osv:CVE-2026-91929
Complete source record
{
  "id": "fdd8d6d50d736d683cb8244aacc58f17a277d4805dbcf86e584722b1ae76d37e",
  "url": "https://osv.dev/vulnerability/CVE-2026-91929",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Flowise before 3.1.4 Cross-Tenant Authorization Bypass",
    "summary": "Flowise versions before 3.1.4 contain cross-tenant authorization gaps in Enterprise endpoints that fail to verify resource ownership before operations. Attackers with Enterprise access can delete arbitrary workspaces, invite themselves into other organizations, modify cross-org roles, and abuse stored SSO secrets.",
    "evidence": "osv:CVE-2026-91929",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-91929",
      "aliases": [
        "CVE-2026-91929",
        "GHSA-7x8x-vv46-4579"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/flowiseai/flowise",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a65f81bb43ef66d3ce734bf0dff4223ae8041c95"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.1.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.1.4"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "flowise@3.1.3",
            "flowise-ui@3.1.3",
            "flowise-components@3.1.3",
            "flowise@3.1.2",
            "flowise-ui@3.1.2",
            "flowise-components@3.1.2",
            "flowise@3.1.1",
            "flowise-ui@3.1.1",
            "flowise-components@3.1.1",
            "flowise@3.1.0",
            "flowise-ui@3.1.0",
            "flowise-components@3.1.0",
            "pre-langchain-v1",
            "flowise@3.0.13",
            "flowise-ui@3.0.13",
            "flowise-components@3.0.13",
            "flowise@3.0.12",
            "flowise-ui@3.0.12",
            "flowise-components@3.0.12",
            "flowise@3.0.11",
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            "flowise-components@3.0.11",
            "flowise@3.0.10",
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            "flowise-components@3.0.10",
            "flowise@3.0.9",
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            "flowise-components@3.0.8",
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            "flowise@2.2.8",
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            "flowise@2.2.7-patch.1",
            "flowise-ui@2.2.7-patch.1",
            "flowise-components@2.2.7-patch.1",
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            "flowise-ui@1.2.13",
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            "flowise@1.2.6",
            "flowise-ui@1.2.5",
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            "flowise-ui@1.2.2",
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            "flowise-components@1.2.3",
            "flowise@1.2.2",
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            "flowise@1.2.1",
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            "flowise-components@1.2.1",
            "flowise@1.1.1",
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            "flowise@1.0.1",
            "flowise@1.0.0",
            "flowise-ui@1.0.0",
            "flowise-components@1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91929.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.280839328Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91929.json",
        "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-7x8x-vv46-4579",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-91929",
        "https://www.vulncheck.com/advisories/flowise-before-3.1.4-cross-tenant-authorization-bypass"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91929.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-91929",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492012,
  "published_at": "2026-09-15T15:17:54.262+00:00"
}