{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "neotoma"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.13.0"
            },
            {
              "fixed": "0.14.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-25T17:46:49Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "## Summary\n\nThe `/list_relationships` and `/retrieve_graph_neighborhood` endpoints call `getAuthenticatedUserId` (confirming a valid session exists) but do not pass the resolved user ID into the Supabase query as an `.eq(\"user_id\", userId)` filter. As a result, queries return rows from all users rather than scoping to the authenticated caller\u0027s data.\n\n## Affected code\n\n**`/list_relationships`** (`src/actions.ts`):\n- Calls `getAuthenticatedUserId` but does not apply `.eq(\"user_id\", userId)` to the relationships query\n- Uses `.or()` string interpolation for entity ID matching without input validation\n\n**`/retrieve_graph_neighborhood`** (`src/actions.ts`):\n- Same pattern: auth resolved, user ID not applied to query filter\n\n## Affected versions\n\nv0.13.0\n\n## Prerequisites\n\n1. A valid authentication token for the Neotoma instance (attacker must have a legitimate account on the same instance)\n2. A known entity ID belonging to another user (~96 bits of entropy \u2014 brute-force not practical)\n\nAn unauthenticated caller is rejected at the auth middleware layer. The gap requires a second user account on the instance.\n\n## Impact\n\nAn authenticated user with a known cross-user entity ID can retrieve relationship edges and graph neighborhood data belonging to another user. No write capability is exposed.\n\n## Severity\n\nLow under current conditions \u2014 no multi-tenant deployments exist. Escalates to Medium the moment two or more user accounts share an instance.\n\n## Remediation\n\n1. Add `.eq(\"user_id\", userId)` to all Supabase queries in both handlers\n2. Validate entity ID inputs with `isNeotomaEntityId` before query construction\n3. Replace `.or()` string interpolation with separate scoped `.eq()` calls\n\nFix tracked in #365 (list_relationships) and #366 (retrieve_graph_neighborhood). Gate gap tracked in #372.",
  "id": "GHSA-wrr4-782v-jhwh",
  "modified": "2026-06-25T17:46:49Z",
  "published": "2026-06-25T17:46:49Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/markmhendrickson/neotoma/security/advisories/GHSA-wrr4-782v-jhwh"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markmhendrickson/neotoma/issues/365"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markmhendrickson/neotoma/issues/366"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markmhendrickson/neotoma/issues/372"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/markmhendrickson/neotoma"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "neotoma has tenant isolation gap in relationship query endpoints"
}