EUVD-2026-23745
GHSA-vvfc-fp59-m92g
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
8DescriptionCVE.org
A security flaw has been discovered in langflow-ai langflow up to 1.1.0. This issue affects the function create_upload_file of the file src/backend/base/Langflow/api/v1/endpoints.py of the component API Endpoint. The manipulation results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
Unrestricted file upload in Langflow (langflow-ai) versions up to 1.1.0 allows remote unauthenticated attackers to upload arbitrary files via the create_upload_file API endpoint, potentially leading to remote code execution, data manipulation, and service disruption. Publicly available exploit code exists (CVSS:3.1 E:P) with GIST-hosted POC, elevating immediate risk. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions-remote unauthenticated exploitation against default configurations of Langflow API v1 up to version 1.1.0. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is HIGH despite the 7.3 CVSS score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated remote attacker sends a crafted HTTP POST request to the Langflow API endpoint (e.g., https://target.com/api/v1/create_upload_file) containing a malicious Python file disguised with a benign filename or MIME type. The create_upload_file function accepts and stores the file in a web-accessible or executable directory without validating content or extension. … |
| Remediation | No vendor-released patch is available at time of analysis (CVSS RL:X indicates vendor unresponsive). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: identify all Langflow deployments and document versions in use; isolate any instances running versions ≤1.1.0 from production networks if upgrading is not immediately feasible. …
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External POC / Exploit Code
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