CVE-2026-33484

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5	Exploit Vendor Advisory
https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-24 14:16

Updated : 2026-03-24 19:20

NVD link : CVE-2026-33484

Mitre link : CVE-2026-33484

CVE.ORG link : CVE-2026-33484

JSON object : View

Products Affected

langflow

langflow

CWE

CWE-284

Improper Access Control

CWE-639

Authorization Bypass Through User-Controlled Key

CWE-862

Missing Authorization

{"id": "CVE-2026-33484", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-03-24T14:16:30.607", "references": [{"url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-639"}, {"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Langflow es una herramienta para construir y desplegar agentes y flujos de trabajo impulsados por IA. En las versiones 1.0.0 a 1.8.1, el endpoint `/api/v1/files/images/{flow_id}/{file_name}` sirve archivos de imagen sin ninguna autenticaci\u00f3n ni verificaci\u00f3n de propiedad. Cualquier solicitud no autenticada con un `flow_id` y `file_name` conocidos devuelve la imagen con HTTP 200. En un despliegue multi-inquilino, cualquier atacante que pueda descubrir o adivinar un 'flow_id' (los UUID pueden filtrarse a trav\u00e9s de otras respuestas de la API) puede descargar las im\u00e1genes subidas por cualquier usuario sin credenciales. La versi\u00f3n 1.9.0 contiene un parche."}], "lastModified": "2026-03-24T19:20:13.567", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2DFDBBCF-1947-4468-9C94-5CF03650A12D", "versionEndExcluding": "1.9.0", "versionStartIncluding": "1.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}