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-2026-17632: 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...

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...

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...

CVE-2026-17623: Improper Neutralization of Special Elements used in an OS Command

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...

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...

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...

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...

CVE-2026-10128: Exposure of Sensitive Information to an Unauthorized Actor

IBM Langflow OSS 1.0.0 through 1.10.3 allows authenticated users can exploit a built-in Langflow component to read arbitrary server environment variables, exposing sensitive secrets despite security controls intended to disable custom components...

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-2026-68259

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...

PT-2026-68289

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Incomplete and ineffective enforcement of protections allows for server-side request forgery SSRF, a condition where an attacker can induce the server to make requests to an unintended...

PT-2026-68253

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description An issue allows users to read arbitrary files from the server filesystem by sending a crafted MCP resources/read request. By using a URL-encoded path traversal sequence in the filename...

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-2026-68257

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description A remote authenticated attacker can execute arbitrary commands due to improper neutralization of special elements used in an OS command. This issue occurs when the application fails to...

PT-2026-68258

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Authenticated users can exploit a built-in component to read arbitrary server environment variables. This allows the exposure of sensitive secrets, bypassing security controls designed...