CVE-2026-17626 Langflow is affected by security vulnerabilities in Model Context Protocol features

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow could allow an authenticated attacker to read, modify, or expose sensitive host files via Docker-based MCP servers due to incomplete filtering of dangerous Docker volume-mount and device-mapping arguments...

CVE-2026-17626

CVE-2026-17626 affects IBM Langflow OSS versions 1.0.0–1.10.3. An authenticated attacker could read, modify, or expose sensitive host files through Docker-based MCP servers due to incomplete filtering of dangerous docker volume-mount and device-mapping arguments. The IBM/NVD entries describe the ...

CVE-2026-8446

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol MCP composer endpoint when mcpcomposerenabled=true default and projects are configured with authtype=oauth...

CVE-2026-8446

Langflow OSS versions 1.0.0–1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol (MCP) composer endpoint when mcp_composer_enabled=true (default) and projects use auth_type=oauth. The issue, tracked under CVE-2026-8446, enables bypassing authentication for the MCP c...

EUVD-2026-53465

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol MCP composer endpoint when mcpcomposerenabled=true default and projects are configured with authtype=oauth...

CVE-2026-7646

IBM Langflow OSS 1.0.0 through 1.10.3 allows users to read arbitrary files from the server filesystem, including other users' uploaded documents, the JWT signing secret, the SQLite database, and process environment variables, by sending a crafted MCP resources/read request with a URL-encoded path...

CVE-2026-7646

CVE-2026-7646 affects IBM Langflow OSS 1.0.0–1.10.3. Affected component: Model Context Protocol (MCP) resources/read handling. Root cause: URL-encoded path traversal in the filename enables a crafted MCP request to read arbitrary server files (including other users’ documents, JWT signing secret,...

EUVD-2026-53464

IBM Langflow OSS 1.0.0 through 1.10.3 allows users to read arbitrary files from the server filesystem, including other users' uploaded documents, the JWT signing secret, the SQLite database, and process environment variables, by sending a crafted MCP resources/read request with a URL-encoded path...

CVE-2026-9077

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow allows remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server configurations to IDE configuration files on the host system...

CVE-2026-9077

Summary of CVE-2026-9077 (IBM Langflow OSS) : Langflow OSS versions 1.0.0–1.10.3 allow remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server configurations to IDE configuration files on the host. The vulnerability stems from weaknesses in MCP command/...

EUVD-2026-53463

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow allows remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server configurations to IDE configuration files on the host system...

ROOT-APP-PYPI-CVE-2026-55255 CVE-2026-55255 in langflow - Patched by Root

Root has patched CVE-2026-55255 in the langflow package for Root:PyPI. Multiple fixed versions available...

CISA Flags Langflow RCE, Tomcat, and N-central Flaws as Actively Exploited

The U.S. Cybersecurity and Infrastructure Security Agency CISA, on August 5, 2026, added three flaws to its Known Exploited Vulnerabilities KEV catalog, citing evidence of active exploitation in the wild. The list of vulnerabilities is as follows - CVE-2026-9198 CVSS score: 9.8 - A code injection...

VulnCheck KEV: CVE-2026-9198

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/autologin mints SUPERUSER tokens to any network caller with /api/v1/validate/code executes user code via exec to achieve full RCE on default Langflow deployments...

IBM Langflow Code Injection Vulnerability

Langflow contains a code injection vulnerability that allows unauthenticated attackers to achieve full remote code execution on default Langflow deployments...

Security Bulletin: Langflow is affected by security vulnerabilities in Model Context Protocol features

Summary Langflow uses Model Context Protocol MCP features to manage external server connections, project access, file resources, and local client integration. Weaknesses in MCP command and configuration validation, authentication and authorization enforcement, file resource handling, and request...

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...

IBM Langflow OSS path traversal vulnerability

IBM Langflow OSS is an open-source low-code visual AI workflow building tool developed by IBM. It enables developers to quickly build, deploy, and iterate AI agents and RAG applications by dragging and dropping components. Additionally, it supports deep customization using Python to integrate wit...

IBM Langflow OSS authorization issue vulnerability (CNVD-2026-31200)

IBM Langflow OSS is an open-source low-code visualization AI workflow building tool developed by IBM. It enables developers to quickly build, deploy, and iterate AI agents and RAG applications by dragging and dropping components. Additionally, it supports deep customization using Python to...

IBM Langflow OSS command injection vulnerability

IBM Langflow OSS is an open-source low-code visualization AI workflow building tool developed by IBM. It enables developers to quickly build, deploy, and iterate AI agents and RAG applications through drag-and-drop components. Additionally, it supports deep customization using Python to integrate...