CVE-2026-18891

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary flows and access sensitive information due to improper authentication...

CVE-2026-18729

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote authenticated attacker to execute arbitrary code due to improper control of generation of code...

CVE-2026-19295 Langflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcement

IBM Langflow OSS 1.0.0 through 1.11.1 allows an authenticated attacker to execute arbitrary operating system commands in the server process by saving a flow with a crafted type field value and triggering a build of a wrapper flow that references it. This allowed privilege escalation from...

CVE-2026-19295 Langflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcement

IBM Langflow OSS 1.0.0 through 1.11.1 allows an authenticated attacker to execute arbitrary operating system commands in the server process by saving a flow with a crafted type field value and triggering a build of a wrapper flow that references it. This allowed privilege escalation from...

CVE-2026-19295

IBM Langflow OSS versions 1.0.0 through 1.11.1 are vulnerable to arbitrary OS command execution (CWE-95, Eval Injection) with a CVSS score of 9.9 (CRITICAL) . An authenticated attacker can save a flow with a crafted type field value that reaches Pydantic's ForwardRef evaluation path, where eval()...

CVE-2026-19294 Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote authenticated attacker to execute and read any user's private flow due to improper authorization...

CVE-2026-19294 Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote authenticated attacker to execute and read any user's private flow due to improper authorization...

CVE-2026-19294

IBM Langflow OSS versions 1.0.0 through 1.11.1 are affected by an improper authorization flaw (CWE-639). Deprecated build endpoints remain fully routed but lack the object-level ownership check present on the modern equivalent endpoint, allowing any authenticated user to enumerate and execute ano...

CVE-2026-19286 Langflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcement

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary code due to improper enforcement of security restrictions on the A2A public endpoint...

CVE-2026-19286 Langflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcement

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary code due to improper enforcement of security restrictions on the A2A public endpoint...

CVE-2026-19286

IBM Langflow OSS versions 1.0.0 through 1.11.1 are vulnerable to arbitrary code execution via the A2A (Agent-to-Agent) public endpoint . The root cause is that the A2A public execution path does not invoke the validate_public_flow_no_code_execution guard used by other unauthenticated public surfa...

CVE-2026-18904 Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to obtain sensitive information and inject unauthorized messages due to a namespace collision between user identifiers...

CVE-2026-18904 Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to obtain sensitive information and inject unauthorized messages due to a namespace collision between user identifiers...

CVE-2026-18904

IBM Langflow OSS versions 1.0.0 through 1.11.1 are affected by an authorization bypass (CWE-639) stemming from a namespace collision between user identifiers . The public flow metadata endpoint exposes the owner's user_id, which an unauthenticated attacker can reuse as a client_id to collide with...

CVE-2026-18899 Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to read arbitrary files due to path traversal...

CVE-2026-18899 Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to read arbitrary files due to path traversal...

CVE-2026-18899

IBM Langflow OSS 1.0.0 through 1.11.1 is vulnerable to a path traversal (CWE-22) that allows an unauthenticated remote attacker to read arbitrary files. The root cause is in the public flow-build endpoint, which accepts an unvalidated files parameter forwarded directly to the storage backend; the...

CVE-2026-18891 Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary flows and access sensitive information due to improper authentication...

CVE-2026-18891

IBM Langflow OSS versions 1.0.0 through 1.11.1 is affected by an improper authentication flaw (CWE-287) in the MCP project authentication function. When MCP Composer is enabled, the function omits the default auth_type=none value from the set of modes requiring an API key, causing unauthenticated...

CVE-2026-18891 Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary flows and access sensitive information due to improper authentication...