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 ...

PT-2026-68290

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Improper validation of the username field allows attackers to inject path traversal sequences—a technique used to access files and directories outside the intended folder—and bypass...

PT-2026-68305

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 arbitrary code due to a cryptographic weakness in the custom component validation mechanism. When the optional hardening mode is enabled to restri...

PT-2026-68254

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description An authentication bypass exists in the Model Context Protocol MCP composer endpoint. This occurs when the mcp composer enabled variable is set to true the default setting and projects...

CVE-2026-9205: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensurefernetkey function...

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-2026-8182: 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-2026-17633: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary code due to code injection...

CVE-2026-17624: Improper Control of Generation of Code

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 code due to improper validation of module imports...

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...

CVE-2026-9130: Authorization Bypass Through User-Controlled Key

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authorization bypass vulnerability in the MemoryComponent that allows authenticated users to access chat history of other users via sessionid collision. The MemoryComponent.retrievemessages and storemessage methods filter on sessionid without...

CVE-2026-8478: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote attacker to inject arbitrary code on the system, due to the improper control of user input code...

CVE-2026-8470: Use of a Broken or Risky Cryptographic Algorithm

IBM Langflow OSS 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 use Python's non-cryptographic random module for generating Fernet encryption keys from user secrets under 32 characters. The deterministic Mersenne Twister PRNG produces identical keys for...

CVE-2026-8183: Improper Limitation of a Pathname to a Restricted Directory

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, and 1.0.0 through 1.10.3 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot "...

CVE-2026-7869: Improper Limitation of a Pathname to a Restricted Directory

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-2026-17632: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary code due to improper validation of Python code during AST-based security scanning...

CVE-2026-9081: Server-Side Request Forgery (SSRF)

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-2026-17625: 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-2026-8446: Missing Authentication for Critical Function

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: Improper Limitation of a Pathname to a Restricted Directory

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...