CVE-2026-33017-Langflop

CVE-2026-33017 Langflow "Langflop" Unauth RCE PoC PoC for the unauthenticated buildpublictmp code-execution flaw in Langflow. It uploads a malicious component to a public flow, triggers a build, and catches a reverse shell. For authorized security testing only. Use only against systems you own or...

CVE-2026-85025

IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an unauthenticated attacker to execute arbitrary code and access or modify chat sessions through publicly shared MCP project endpoints due to improper enforcement of public-flow security restrictions and session isolation controls...

CVE-2026-85025

IBM Langflow OSS versions 1.0.0 through 1.11.5 are vulnerable to arbitrary code execution and chat session access/modification by an unauthenticated attacker through publicly shared MCP project endpoints . The root cause is improper enforcement of public-flow security restrictions and session iso...

PT-2026-89598

🚨Critical - IBM Langflow OSS Unauth RCE via Public MCP Project Endpoints CVE-2026-85025 Langflow OSS improperly enforces public-flow restrictions on publicly shared MCP project endpoints, allowing unauthenticated access to/modify chat sessions. By abusing weak session isolation, attackers can piv...

Security Bulletin: Langflow is vulnerable to information disclosure due to cross-user MCP tool cache collision and incomplete secret scrubbing on public flows

Summary Langflow contains two authenticated information disclosure vulnerabilities. The MCP Tools component caches discovered tools in a shared process-local cache keyed only by the MCP server display name without including the user, session, flow, or resolved configuration; when two authenticate...

Security Bulletin: Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement

Summary Langflow OSS supports custom Python components and validation of component code for component development workflows. Weaknesses in custom component execution paths, validation endpoints, and trusted template enforcement could allow authenticated users to execute arbitrary Python code or...

Exploit for Eval Injection in Langflow

CVE-2026-33017 Langflow RCE ★ CVE-2026-33017 Langflow Remote...

Security Bulletin: Unauthenticated Session History Access via Public Flow Execution

Summary A session ID namespace bypass vulnerability existed in Langflow OSS' POST /api/v1/buildpublictmp/flowid/flow endpoint that allowed unauthenticated attackers to access chat history from other users' sessions. The endpoint accepted an inputs.session parameter that could override the session...

Exploit for Eval Injection in Langflow

CVE-2026-33017 — Langflow Unauthenticated Remote Code Executio...

CVE-2026-13448

IBM Langflow OSS 1.0.0 through 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint /api/v1/buildpublictmp/flowid/flow . The vulnerability stems from an incomplete denylist in the validatepublicflownocodeexecution function that fails...

EUVD-2026-45308

IBM Langflow OSS 1.0.0 through 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint /api/v1/buildpublictmp/flowid/flow . The vulnerability stems from an incomplete denylist in the validatepublicflownocodeexecution function that fails...

PT-2026-60871

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.1 Description An unauthenticated remote code execution issue exists in the public flow build endpoint '/api/v1/build public tmp/flow id/flow'. The flaw is caused by an incomplete denylist within the...

Exploit for Eval Injection in Langflow

Fireflow RCE Exploit Remote Code Execution for Langflow via t...

Exploit for Eval Injection in Langflow

CVE-2026-33017 - Langflow Unauthenticated RCE ⚠️ DISCLAIM...

Unauthenticated Remote Code Execution in Langflow via Public Flow Build Endpoint

SummaryThe POST /api/v1/buildpublictmp/flowid/flow endpoint allows building public flows without requiring authentication. When the optional data parameter is supplied, the endpoint uses attacker-controlled flow data containing arbitrary Python code in node definitions instead of the stored flow...

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 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 ...

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...

CVE-2026-7787 Unauthenticated Session History Access via Public Flow Execution

IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information by bypassing authentication using insecure direct object references...

CVE-2026-7787

CVE-2026-7787 affects Langflow OSS versions 1.0.0–1.9.1. A session ID namespace bypass in the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint allows unauthenticated attackers to read or modify chat history by overriding the session_id used during flow execution when a PUBLIC flow includes a...