Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-33484
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cpe:2.3:a:langflow:langflow:1.0.0
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cpe:2.3:a:langflow:langflow:1.0.1
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cpe:2.3:a:langflow:langflow:1.0.10
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cpe:2.3:a:langflow:langflow:1.0.11
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cpe:2.3:a:langflow:langflow:1.0.12
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cpe:2.3:a:langflow:langflow:1.0.13
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cpe:2.3:a:langflow:langflow:1.0.14
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cpe:2.3:a:langflow:langflow:1.0.15
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cpe:2.3:a:langflow:langflow:1.0.16
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cpe:2.3:a:langflow:langflow:1.0.17
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cpe:2.3:a:langflow:langflow:1.0.18
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cpe:2.3:a:langflow:langflow:1.0.19
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cpe:2.3:a:langflow:langflow:1.0.2
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cpe:2.3:a:langflow:langflow:1.0.3
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cpe:2.3:a:langflow:langflow:1.0.4
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cpe:2.3:a:langflow:langflow:1.0.5
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cpe:2.3:a:langflow:langflow:1.0.6
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cpe:2.3:a:langflow:langflow:1.0.7
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cpe:2.3:a:langflow:langflow:1.0.8
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cpe:2.3:a:langflow:langflow:1.0.9
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cpe:2.3:a:langflow:langflow:1.1.0
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cpe:2.3:a:langflow:langflow:1.1.1
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cpe:2.3:a:langflow:langflow:1.1.2
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cpe:2.3:a:langflow:langflow:1.1.3
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cpe:2.3:a:langflow:langflow:1.1.4
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cpe:2.3:a:langflow:langflow:1.2.0
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cpe:2.3:a:langflow:langflow:1.3.0
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cpe:2.3:a:langflow:langflow:1.3.1
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cpe:2.3:a:langflow:langflow:1.3.2
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cpe:2.3:a:langflow:langflow:1.3.3
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cpe:2.3:a:langflow:langflow:1.3.4
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cpe:2.3:a:langflow:langflow:1.4.0
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cpe:2.3:a:langflow:langflow:1.4.1
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cpe:2.3:a:langflow:langflow:1.4.2
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cpe:2.3:a:langflow:langflow:1.4.3
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cpe:2.3:a:langflow:langflow:1.5.0
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cpe:2.3:a:langflow:langflow:1.5.1
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cpe:2.3:a:langflow:langflow:1.6.0
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cpe:2.3:a:langflow:langflow:1.6.1
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cpe:2.3:a:langflow:langflow:1.6.10
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cpe:2.3:a:langflow:langflow:1.6.2
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cpe:2.3:a:langflow:langflow:1.6.3
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cpe:2.3:a:langflow:langflow:1.6.4
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cpe:2.3:a:langflow:langflow:1.6.5
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cpe:2.3:a:langflow:langflow:1.6.6
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cpe:2.3:a:langflow:langflow:1.6.7
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cpe:2.3:a:langflow:langflow:1.6.8
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cpe:2.3:a:langflow:langflow:1.6.9
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cpe:2.3:a:langflow:langflow:1.7.0
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cpe:2.3:a:langflow:langflow:1.7.1