CVEvulnerability

CVE-2026-33484

7.5 HIGH Published 2026-03-24 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-284, CWE-639, CWE-862

Description

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.

Affected configurations

• langflow langflow (>= 1.0.0 < 1.9.0)

Related

Weakness · CWE (3)

  • CWE-284 Improper Access Control weakness
  • CWE-639 Authorization Bypass Through User-Controlled Key weakness
  • CWE-862 Missing Authorization weakness

References