affected:
- package:
    ecosystem: PyPI
    name: langflow
    purl: pkg:pypi/langflow
  ranges:
  - events:
    - introduced: 1.0.0
    - fixed: 1.9.0
    type: ECOSYSTEM
  versions:
  - 1.0.0
  - 1.0.1
  - 1.0.10
  - 1.0.11
  - 1.0.12
  - 1.0.13
  - 1.0.14
  - 1.0.15
  - 1.0.16
  - 1.0.17
  - 1.0.18
  - 1.0.19
  - 1.0.19.post1
  - 1.0.19.post2
  - 1.0.2
  - 1.0.3
  - 1.0.4
  - 1.0.5
  - 1.0.6
  - 1.0.7
  - 1.0.8
  - 1.0.9
  - 1.1.0
  - 1.1.1
  - 1.1.2
  - 1.1.3
  - 1.1.4
  - 1.1.4.post1
  - 1.2.0
  - 1.3.0
  - 1.3.1
  - 1.3.2
  - 1.3.3
  - 1.3.4
  - 1.4.0
  - 1.4.1
  - 1.4.2
  - 1.4.3
  - 1.5.0
  - 1.5.0.post1
  - 1.5.0.post2
  - 1.5.1
  - 1.6.0
  - 1.6.1
  - 1.6.2
  - 1.6.3
  - 1.6.4
  - 1.6.5
  - 1.6.6
  - 1.6.7
  - 1.6.8
  - 1.6.9
  - 1.7.0
  - 1.7.1
  - 1.7.2
  - 1.7.3
  - 1.8.0
  - 1.8.0rc0
  - 1.8.0rc1
  - 1.8.0rc2
  - 1.8.0rc3
  - 1.8.0rc4
  - 1.8.0rc5
  - 1.8.0rc6
  - 1.8.1
  - 1.8.2
  - 1.8.3
  - 1.8.3rc0
  - 1.8.4
aliases:
- CVE-2026-33484
- GHSA-7grx-3xcx-2xv5
details: Langflow is a tool for building and deploying AI-powered agents and workflows.
  In versions 1.0.0 through 1.8.1, the `/api/v1/files/images/{flow_id}/{file_name}`
  endpoint serves image files without any authentication or ownership check. Any unauthenticated
  request with a known flow_id and file_name returns the image with HTTP 200. In a
  multi-tenant deployment, any attacker who can discover or guess a `flow_id` (UUIDs
  can be leaked through other API responses) can download any user's uploaded images
  without credentials. Version 1.9.0 contains a patch.
id: PYSEC-2026-80
modified: '2026-05-20T09:19:04.571976Z'
published: '2026-03-24T14:16:30.607Z'
references:
- type: EVIDENCE
  url: https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5
severity:
- score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  type: CVSS_V3