CVE-2026-17626: Incorrect Privilege Assignment

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-2026-10547: Improper Access Control

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...

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-2026-68303

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Remote attackers can execute arbitrary code on the server without authentication by sending two HTTP requests. Recommendations Update IBM Langflow OSS to a version later than 1.10.3...

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...

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...

PT-2026-68299

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 code due to improper validation of Python code during AST-based security scanning. AST Abstract Syntax Tree is a tree representatio...

CVE-2026-7657: Server-Side Request Forgery (SSRF)

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow could allow server-side request forgery SSRF due to incomplete and ineffective SSRF protection enforcement...

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-2026-8446: 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...

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-2026-17630: Incomplete List of Disallowed Inputs

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...

PT-2026-68291

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description An authenticated attacker can perform a Path Traversal attack via the Knowledge Bases API endpoint POST /api/v1/knowledge bases. This issue arises because the system uses user-supplied...

PT-2026-68294

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Improper control of user input code allows a remote attacker to inject and execute arbitrary code on the system. Recommendations Update IBM Langflow OSS to a version later than 1.10.3...

PT-2026-68292

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description A remote attacker can perform directory traversal on the system. By sending a specially crafted URL request containing dot-dot-slash /../ sequences, an attacker can view arbitrary file...

PT-2026-68298

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Improper validation of module imports allows a remote authenticated attacker to execute arbitrary code. Recommendations At the moment, there is no information about a newer version tha...

PT-2026-68259

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Insufficient ownership validation in the deprecated 'POST /api/v1/build/flow id/vertices' endpoint allows an authenticated user to inject arbitrary graph data into a shared cache for a...

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...

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-2026-17625: 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...