CVE-2026-33484
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.84%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 5.84% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-284, CWE-639, CWE-862
- Affected
- langflow/langflow
- Source
- security-advisories@github.com
References
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5Exploit, Vendor Advisory
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.