PT-2026-85768

IBM Langflow OSS 1.0.0 through 1.10.2 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-2026-9138: Improper Limitation of a Pathname to a Restricted Directory

IBM Langflow OSS 1.0.0 through 1.11.2 Langflow could allow an authenticated attacker to write arbitrary files to the server due to improper input validation in the SaveToFileComponent. The application constructs local file paths using attacker‑controlled input without sufficient sanitization when...

PT-2026-85589

IBM Langflow OSS 1.0.0 through 1.11.2 allows an authenticated attacker to read arbitrary files from the server filesystem — including server secret material secret key, JWT signing keys, the application database, /proc/self/environ, and other tenants' upload directories — by supplying absolute...

CVE-2026-14470: Improper Limitation of a Pathname to a Restricted Directory

IBM Langflow OSS 1.0.0 through 1.10.2 could allow an authenticated 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-2026-17621: Improper Limitation of a Pathname to a Restricted Directory

IBM Langflow OSS 1.0.0 through 1.10.2 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...

PT-2026-85745

IBM Langflow OSS 1.0.0 through 1.10.2 could allow an authenticated 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...

PT-2026-85670

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote attacker to obtain sensitive information due to incomplete scrubbing of sensitive credential fields...

CVE-2026-19304: Server-Side Request Forgery (SSRF)

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain sensitive information from internal services due to a URL parser discrepancy...

PT-2026-85672

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.2 Description A URL parser discrepancy allows a remote authenticated attacker to obtain sensitive information from internal services. This issue occurs because a backslash can be used to bypass...

PT-2026-85588

IBM Langflow OSS 1.0.0 through 1.11.2 allows remote authenticated attackers to bypass localhost-only MCP configuration installation by spoofing X-Forwarded-For: 127.0.0.1 header, enabling arbitrary writes to IDE config files /.cursor/mcp.json, etc...

PT-2026-85697

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to delete arbitrary local files or directories due to improper limitation of a pathname to a restricted directory...

CVE-2026-19303: Improper Limitation of a Pathname to a Restricted Directory

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to delete arbitrary local files or directories due to improper limitation of a pathname to a restricted directory...

CVE-2026-19306: Improper Limitation of a Pathname to a Restricted Directory

IBM Langflow OSS 1.0.0 through 1.11.2 allows an authenticated attacker to read arbitrary files from the server filesystem — including server secret material secretkey, JWT signing keys, the application database, /proc/self/environ, and other tenants' upload directories — by supplying absolute pat...

PT-2026-85696

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery...

PT-2026-85769

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information due to improper limitation of a pathname to a restricted directory...

Security Bulletin: Langflow is affected by improper authorization due to missing access control on the voice-mode WebSocket endpoint

Summary Langflow provides a voice-mode feature through a WebSocket API endpoint that accepts a flow identifier as a URL path parameter and uses it to retrieve the target flow description and persist conversation messages against that flow. The endpoint authenticates the connecting user's identity...

Security Bulletin: Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in file and knowledge base components

Summary Langflow uses filesystem path construction as part of several components and API endpoints, including the Directory component, the Knowledge Base connector ingestion endpoint, and the Knowledge Base flow component. In the Directory component, user-supplied path values are not validated...

Exploit for Eval Injection in Langflow

Description Usage python3 poc.py -u -c Without...

Exploit for Code Injection in Langflow

P...

Langflow 1.10.0 - RCE

Exploit Title: Langflow 1.10.0 - RCE Exploit Author: Richard Howe Vendor Homepage: https://www.langflow.org/ Software Link: https://www.langflow.org/desktop Version: str: endpoint = '/api/v1/autologin' headers = 'Content-Type': 'application/json', try: resp = getbaseurl + endpoint except Exceptio...