CVE-2026-6542

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

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 flowid to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow...

CVE-2026-6542

IBM Langflow OSS 1.0.0–1.8.4 is vulnerable to an authorization bypass in the Monitor API: any authenticated user can supply a flow_id to read another user’s transaction logs and vertex build data, and can delete persisted vertex build data for another user’s flow. Root cause cited as missing owne...

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 flowid to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow...

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 netwo...

CVE-2026-6543

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 netwo...

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 netwo...

EUVD-2026-26448

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 netwo...

CVE-2026-6543

CVE-2026-6543 affects IBM Langflow (OSS 1.0.0–1.8.4 and Desktop 1.0.0–1.8.4). The root cause is unsafe use of Python’s exec() in the code validation endpoint (validate_code) which fails to account for decorators, enabling an authenticated attacker to trigger arbitrary code execution with the Lang...

EUVD-2026-26441

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...

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...

CVE-2026-3345

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...

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...

CVE-2026-3345

IBM Langflow Desktop API v2 File Upload Endpoint (POST /api/v2/files) is vulnerable to a path traversal due to improper validation/sanitation of user-supplied filenames passed to LocalStorageService, allowing authenticated attackers to write files outside the intended upload directory and potenti...

CVE-2026-3346 Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw

IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted...

CVE-2026-3346

IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted...

CVE-2026-3346 Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw

IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted...

EUVD-2026-26425

IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted...

CVE-2026-3346

Summary: CVE-2026-3346 affects IBM Langflow Desktop 1.6.0–1.8.4. Affected component is the Markdown rendering pipeline via rehypeRaw, where unsafe handling allows an authenticated user to inject arbitrary JavaScript through a stored XSS vector, potentially leading to credentials disclosure within...

CVE-2026-3340

CVE-2026-3340 is a Server-Side Request Forgery (SSRF) in the IBM Langflow Desktop URL data source component affecting versions 1.0.0–1.8.4 . An authenticated attacker can cause the Langflow server to make arbitrary requests to internal or restricted network resources, potentially enabling network...