praisonai-platform: Any workspace member can remove any other member (including the owner) via DELETE /workspaces/{id}/members/{user_id}

{
  "id": "aa449c982eafb85f8dcec6d0bb5db7063c63677ee92e98e10ad2f0199d72b013",
  "url": "https://osv.dev/vulnerability/CVE-2026-47409",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "praisonai-platform: Any workspace member can remove any other member (including the owner) via DELETE /workspaces/{id}/members/{user_id}",
    "summary": "PraisonAI Platform is the platform layer for the PraisonAI multi-agent teams system. Versions prior to 0.1.4 have an authorization bypass enabling owner lockout. The `DELETE /workspaces/{workspace_id}/members/{user_id}` endpoint is gated only by `require_workspace_member(workspace_id)` (default `min_role=\"member\"`). Any member can remove any other member, including the workspace owner, using a single DELETE. There is no caller-role check, no target-role check, no \"cannot remove last owner\" guard. PraisonAI Platform version 0.1.4 patches the issue.",
    "evidence": "osv:CVE-2026-47409",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-47409",
      "aliases": [
        "CVE-2026-47409",
        "GHSA-w388-2392-px73",
        "PYSEC-2026-2938"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mervinpraison/praisonai",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b707fd0b27fb405ca03b9a210d6dcb0540774b1a"
                },
                {
                  "fixed": "24385d64876577620f749957bd4814f162f4ca47"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.1.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "24385d64876577620f749957bd4814f162f4ca47"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.1.3",
            "v0.1.2",
            "v0.1.1",
            "v0.1.0",
            "v0.0.74",
            "v0.0.73",
            "v0.0.72",
            "v0.0.71",
            "v0.0.70",
            "v0.0.69",
            "v0.0.68",
            "v0.0.67",
            "v0.0.66",
            "v0.0.65",
            "v0.0.64",
            "v0.0.63",
            "v0.0.62",
            "v0.0.61",
            "v0.0.59",
            "v0.0.59rc11",
            "v0.0.59rc9",
            "v0.0.59rc8",
            "v0.0.59rc7",
            "v0.0.59rc6",
            "0.0.59rc5",
            "v0.0.59rc5",
            "v0.0.59rc4",
            "v0.0.59rc3",
            "v0.0.59rc2",
            "v0.0.59rc1",
            "v0.0.58",
            "0.0.57",
            "0.0.56",
            "0.0.55",
            "v0.0.54",
            "v0.0.53",
            "v0.0.52",
            "v0.0.51",
            "v0.0.50",
            "v0.0.49",
            "v0.0.48",
            "v0.0.47",
            "v0.0.46",
            "v0.0.45",
            "v0.0.44",
            "v0.0.43",
            "v0.0.42",
            "v0.0.41",
            "v0.0.40",
            "v0.0.39",
            "v0.0.38",
            "v0.0.37",
            "v0.0.36",
            "v0.0.35",
            "v0.0.34",
            "v0.0.33",
            "v0.0.32",
            "v0.0.31",
            "v0.0.30",
            "v0.0.29",
            "v0.0.28",
            "v0.0.27",
            "v0.0.26",
            "v0.0.25",
            "v0.0.24",
            "v0.0.23",
            "v0.0.22",
            "v0.0.21",
            "v0.0.20",
            "v0.0.18",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47409.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.830928055Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47409.json",
        "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-w388-2392-px73",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-47409",
        "https://github.com/MervinPraison/PraisonAI/commit/24385d64876577620f749957bd4814f162f4ca47",
        "https://github.com/MervinPraison/PraisonAI/pull/1686"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-269",
          "CWE-862"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47409.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-47409",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497853,
  "published_at": "2026-07-21T16:53:18.207+00:00"
}