{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.0.0"
              },
              {
                "last_affected": "2.9.2"
              },
              {
                "fixed": "2.9.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "c96de7a5f536909aef37fae92f97f62798eb1373"
            },
            {
              "fixed": "20f27c321d4a622a0e4d91a49700a6ccef3652f4"
            }
          ],
          "repo": "https://github.com/1panel-dev/maxkb",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-383v-fx78-pphm"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-639",
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77516.json"
  },
  "details": "MaxKB is an open-source AI assistant for enterprise. From version 2.0.0 through 2.9.2, a lowest-role workspace member denied access to a tool by WorkspaceUserResourcePermission can still bind its identifier through tool_ids, skill_tool_ids, or mcp_tool_ids and execute it through the agent or workflow dispatch path. The dispatch path does not reapply the per-tool grant enforced by dedicated tool routes, and tool execution decrypts server-side init_params, allowing the caller to receive credentials carried by the denied tool. No fixed version is available as of this review.",
  "id": "CVE-2026-77516",
  "modified": "2026-09-23T03:30:54.909091388Z",
  "published": "2026-09-21T20:40:44.213Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-383v-fx78-pphm"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77516.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77516"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MaxKB: Missing per-tool authorization in the agent and workflow tool-dispatch path"
}