CVE-2026-10547

IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate ownership in the deprecated POST /api/v1/build/flowid/vertices endpoint, allowing an authenticated user to inject arbitrary graph data into a shared cache for any flow. This may result in cross-user cache pollution, unauthorized...

CVE-2026-7869 Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement

IBM Langflow OSS 1.0.0 through 1.10.3 is vulnerable to Path Traversal in the Knowledge Bases API POST /api/v1/knowledgebases. This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker...

CVE-2026-7869 Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement

IBM Langflow OSS 1.0.0 through 1.10.3 is vulnerable to Path Traversal in the Knowledge Bases API POST /api/v1/knowledgebases. This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker...

Security Bulletin: Langflow OSS is affected by stored cross-site scripting in image file handling

Summary Langflow OSS serves user-provided image content as part of its file handling features. Improper handling of SVG image content could allow stored script execution when malicious image files are viewed, which may expose session information or permit actions in the context of another user...

CVE-2026-9081

IBM Langflow OSS (versions 1.0.0–1.10.3) is affected by an SSRF in the Ollama provider due to validate_model_provider_key() accepting a user-supplied OLLAMA_BASE_URL and passing it directly to requests.get() without validating scheme/host allowlisting or private IP filtering. This can allow an at...

CVE-2026-9081 Langflow OSS is affected by server-side request forgery in provider validation and API request functionality

IBM Langflow OSS 1.0.0 through 1.10.3, and 1.0.0 through 1.10.3 contains a Server-Side Request Forgery SSRF vulnerability in the validatemodelproviderkey function for the Ollama provider. The function accepts a user-supplied OLLAMABASEURL parameter and passes it directly to requests.get without...

CVE-2026-17630

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote attacker to execute arbitrary code due to improper validation of configuration parameters...

CVE-2026-17623

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of the command field in MCP server configurations...

CVE-2026-17623

Langflow OSS 1.0.0–1.10.3 is affected by CVE-2026-17623: a remote authenticated attacker can execute arbitrary commands due to improper validation of the command field in MCP server configurations. Affected product is Langflow OSS (versions 1.0.0–1.10.3). The root cause is inadequate validation o...

CVE-2026-17626

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-2026-7646

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...

PT-2026-68300

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description A code injection flaw allows a remote authenticated attacker to execute arbitrary code. Recommendations Update IBM Langflow OSS to a version later than 1.10.3...

PT-2026-68304

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description An authenticated attacker can execute unintended code during Agentic Assistant validation because the application improperly handles LLM-generated components. The system executes Pytho...

PT-2026-68255

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Remote authenticated attackers can bypass localhost-only restrictions to write arbitrary Model Context Protocol MCP server configurations to IDE configuration files on the host system...

CVE-2026-9077: Reliance on Untrusted Inputs in a Security Decision

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...

PT-2026-68225

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Remote authenticated attackers can execute arbitrary commands due to improper validation of the command field within MCP server configurations. Recommendations Update IBM Langflow OSS ...

CVE-2026-17625: Improper Neutralization of Special Elements used in an OS Command

IBM Langflow OSS 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, and 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary commands due to improper neutralization of special element...

CVE-2026-8182: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.3 installations allow anyone on the internet to execute arbitrary code on the server without any credentials via 2 HTTP requests...

CVE-2026-9201: Inadequate Encryption Strength

IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute arbitrary code due to a cryptographic weakness in the custom component validation mechanism. When the optional hardening mode that restricts execution to trusted component templates is enabled, the application...

CVE-2026-9196: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute unintended code during Agentic Assistant validation due to improper handling of LLM‑generated components. The application executes model‑generated Python code in the backend during validation prior to user...