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CVE-2026-3340

Server-Side Request Forgery (SSRF) in Langflow URL Component

IBM Langflow Desktop 1.0.0 through 1.8.4 IBM Langflow is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm Langflow
Products
Langflow Desktop Langflow Desktop
CVE-2026-3345

Path Traversal and Arbitrary File Write Vulnerability in IBM Langflow Desktop API v2 File Upload Endpoint

IBM Langflow Desktop <=1.8.4 Langflow could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm Langflow
Products
Langflow Desktop Langflow Desktop
CVE-2026-6543

Authenticated Remote Code Execution Vulnerability in Langflow Code Validation Endpoint

IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow allows an attacker to execute arbitrary commands with the privileges of the process running Langflow. This allows reading sensitive environment variables (API keys, DB credentials), modifying files, or launching further attacks on the internal network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Ibm Langflow
Products
Langflow Desktop Langflow Desktop
CVE-2026-6542

Monitor API allows cross-user read of transaction logs and deletion of build data via flow_id

IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flow_id to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm Langflow
Products
Langflow Oss Langflow
CVE-2026-3357

IBM Langflow Desktop FAISS Vector Store Remote Code Execution via malicious Pickle file

IBM Langflow Desktop 1.6.0 through 1.8.2 Langflow could allow an authenticated user to execute arbitrary code on the system, caused by an insecure default setting which permits the deserialization of untrusted data in the FAISS component.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Ibm Langflow
Products
Langflow Desktop Langflow