EUVD-2026-71596

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

IBM Langflow OSS versions 1.0.0 through 1.11.2 are affected by a path traversal vulnerability (CWE-22) in file-processing components. When deployed with S3 storage mode , the file component path resolution skips the local-access confinement check, and the default-enabled delete-after-processing f...

EUVD-2026-71271

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-2026-19300

IBM Langflow OSS versions 1.0.0 through 1.11.2 are affected by an information disclosure vulnerability in the unauthenticated public flow endpoint. The endpoint uses a heuristic denylist to scrub stored secrets from node templates, but omits fields such as Authentication, X-Session-Id, App-Key, a...

EUVD-2026-71270

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain sensitive information due to path traversal...

CVE-2026-19299 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 could allow a remote authenticated attacker to obtain sensitive information due to path traversal...

EUVD-2026-71269

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain sensitive information due to improper validation of symbolic links...

EUVD-2026-71266

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...

CVE-2026-19304 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 authenticated attacker to obtain sensitive information from internal services due to a URL parser discrepancy...

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

IBM Langflow OSS versions 1.0.0 through 1.11.2 are vulnerable to Server-Side Request Forgery (SSRF) (CWE-918) in multiple components where a remote attacker with no prior authentication can supply attacker-controlled URLs that reach internal network hosts without adequate validation. Affected com...

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-2026-9138

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

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 ...

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...

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...

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...

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...

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...