EUVD-2026-71262

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

CVE-2026-19305 Langflow is vulnerable to Server-Side Request Forgery due to missing or bypassable URL validation in multiple components

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

CVE-2026-19306

IBM Langflow OSS versions 1.0.0 through 1.11.2 contain authenticated path traversal vulnerabilities (CWE-22) in three components: ChatInput (files parameter in build requests uses pathlib join that resets on absolute segments), JigsawStack File Upload (resolves FileInput paths without the access ...

CVE-2026-19306 Langflow is vulnerable to arbitrary local file read due to path traversal in ChatInput, bundle FileInput, and GitExtractor components

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...

CVE-2026-19306 Langflow is vulnerable to arbitrary local file read due to path traversal in ChatInput, bundle FileInput, and GitExtractor components

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...

EUVD-2026-71260

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...

CVE-2026-9186

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...

CVE-2026-9138

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...

CVE-2026-8447

IBM Langflow OSS 1.0.0 through 1.11.2 suffer from a stored cross-site scripting vulnerability in the Playground chat interface...

CVE-2026-9138 Langflow is vulnerable to arbitrary file write and arbitrary file deletion due to unvalidated paths in file-processing components

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...

EUVD-2026-71217

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...

CVE-2026-9138

IBM Langflow OSS 1.0.0 through 1.11.2 contains an arbitrary file write vulnerability (CVE-2026-9138) in the SaveToFileComponent , which constructs local file paths from attacker-controlled input without sufficient sanitization on the /api/v1/run/{flow_id} endpoint. A low-privileged authenticated ...

CVE-2026-8447

IBM Langflow OSS versions 1.0.0 through 1.11.2 contain a stored cross-site scripting vulnerability in the Playground chat interface. The root cause is the MarkdownField component rendering chat messages via the rehypeRaw plugin without a sanitization pass, allowing attacker-controlled LLM respons...

CVE-2026-8447 Langflow is vulnerable to stored cross-site scripting and IP spoofing due to unsanitized Markdown rendering and untrusted proxy header trust

IBM Langflow OSS 1.0.0 through 1.11.2 suffer from a stored cross-site scripting vulnerability in the Playground chat interface...

EUVD-2026-71216

IBM Langflow OSS 1.0.0 through 1.11.2 suffer from a stored cross-site scripting vulnerability in the Playground chat interface...

CVE-2026-8447 Langflow is vulnerable to stored cross-site scripting and IP spoofing due to unsanitized Markdown rendering and untrusted proxy header trust

IBM Langflow OSS 1.0.0 through 1.11.2 suffer from a stored cross-site scripting vulnerability in the Playground chat interface...

CVE-2026-9186

IBM Langflow OSS versions 1.0.0 through 1.11.2 contain an improper access control vulnerability (CWE-284) in the MCP configuration installation endpoint. The endpoint enforces a localhost-only restriction using a client IP helper that blindly trusts the X-Forwarded-For header without verifying th...

CVE-2026-9186 Langflow is vulnerable to stored cross-site scripting and IP spoofing due to unsanitized Markdown rendering and untrusted proxy header trust

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...

EUVD-2026-71215

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...

CVE-2026-9186 Langflow is vulnerable to stored cross-site scripting and IP spoofing due to unsanitized Markdown rendering and untrusted proxy header trust

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...