CVE-2026-19300 Langflow is vulnerable to information disclosure due to cross-user MCP tool cache collision and incomplete secret scrubbing on public flows

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-2026-10134 Unauthenticated Server-Side RCE via PythonCodeStructuredTool in Public Flows

IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read and modify every flow, conversation, message, file upload, and saved component in the Langflow database, can connect to internal services, abuse cloud metadata endpoints, laterally...

PYSEC-2026-244

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" or "Public Flows" in code contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of...

PYSEC-2026-243

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessi...

CVE-2026-48519

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessi...

CVE-2026-48520

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" or "Public Flows" in code contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of...

PYSEC-2026-243

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessi...

PYSEC-2026-244

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" or "Public Flows" in code contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of...

CVE-2026-48520 Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" or "Public Flows" in code contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of...

CVE-2026-48520

CVE-2026-48520 (Langflow) : Multiple sources confirm a vulnerability in the Shareable Playground/Public Flows feature prior to Langflow 1.10.0. An unauthenticated user can trigger public flow execution and supply a files list to the /api/v1/build_public_tmp endpoint, causing Langflow to read arbi...

CVE-2026-48520 Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" or "Public Flows" in code contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of...

EUVD-2026-38514

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessi...

CVE-2026-48519

Langflow CVE-2026-48519 exposes unauthenticated RCE via the Shareable Playground. Affected: Langflow prior to 1.9.2. Vulnerable route: /api/v1/build_public_tmp permits executing any public flow; payloads can inject arbitrary Python code into data.nodes[X].data.node.template.code.value. Impact is ...

CVE-2026-48519 Langflow: Unauthenticated RCE in Shareable Playgrounds

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessi...

CVE-2026-48519 Langflow: Unauthenticated RCE in Shareable Playgrounds

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessi...

Security Bulletin: Unauthenticated Server-Side RCE via PythonCodeStructuredTool in Public Flows

Summary Langflow OSS contains unauthenticated server-side RCE via PythonCodeStructuredTool executing attacker-controlled Python through exec at flow-build time. Sink in execself.toolcode, globals, localnamespace where toolcode is attacker-controlled template field. Two paths: A Authenticated POST...

CVE-2026-48519: Improper Control of Generation of Code

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessi...

GHSA-RCJH-R59H-GQ37 Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read

Summary The "Shareable Playground" or "Public Flows" in code contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of the flow is allowed. The execution request can contain a list of files that gets read b...

Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read

Summary The "Shareable Playground" or "Public Flows" in code contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of the flow is allowed. The execution request can contain a list of files that gets read b...

Langflow: Unauthenticated RCE in Shareable Playgrounds

Summary The "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Simply sharing a flow exposes the deployment to RCE risk by authenticated users. Tested on commit 2d67402b1dbaefcbce85a244d4a6cd5e4bda1cfe Details Shareable Playground feature works by enabling the...