High severityNVD Advisory· Published Mar 24, 2026· Updated Mar 24, 2026
Langflow has Unauthenticated IDOR on Image Downloads
CVE-2026-33484
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
langflowPyPI | >= 1.0.0, < 1.9.0 | 1.9.0 |
Affected products
2- Range: >= 1.0.0, < 1.9.0
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-7grx-3xcx-2xv5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33484ghsaADVISORY
- github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5ghsax_refsource_CONFIRMWEB
- github.com/pypa/advisory-database/tree/main/vulns/langflow/PYSEC-2026-80.yamlghsaWEB
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