CVE-2026-9202

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to create unlimited user accounts on any Langflow instance; when NEWUSERISACTIVE=true documented deployment option, newly created accounts are immediately active and can authenticate to reach RCE endpoints, bypassing the need...

CVE-2026-9198

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/autologin mints SUPERUSER tokens to any network caller with /api/v1/validate/code executes user code via exec to achieve full RCE on default Langflow deployments...

EUVD-2026-45236

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/autologin mints SUPERUSER tokens to any network caller with /api/v1/validate/code executes user code via exec to achieve full RCE on default Langflow deployments...

CVE-2026-9198 Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/autologin mints SUPERUSER tokens to any network caller with /api/v1/validate/code executes user code via exec to achieve full RCE on default Langflow deployments...

CVE-2026-9198

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/autologin mints SUPERUSER tokens to any network caller with /api/v1/validate/code executes user code via exec to achieve full RCE on default Langflow deployments...

CVE-2026-9198 Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/autologin mints SUPERUSER tokens to any network caller with /api/v1/validate/code executes user code via exec to achieve full RCE on default Langflow deployments...

CVE-2026-9198

IBM Langflow OSS versions 1.0.0–1.10.0 are affected by an unauthenticated remote code execution (RCE) vulnerability that chains two endpoints: /api/v1/auto_login (which mints a superuser token for callers when AUTO_LOGIN is enabled) and /api/v1/validate/code (which executes user-supplied Python c...

CVE-2026-9202

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to create unlimited user accounts on any Langflow instance; when NEWUSERISACTIVE=true documented deployment option, newly created accounts are immediately active and can authenticate to reach RCE endpoints, bypassing the need...

CVE-2026-9202 Unauthenticated User Registration Could Lead to Remote Code Execution

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to create unlimited user accounts on any Langflow instance; when NEWUSERISACTIVE=true documented deployment option, newly created accounts are immediately active and can authenticate to reach RCE endpoints, bypassing the need...

CVE-2026-9202

CVE-2026-9202 affects IBM Langflow OSS versions 1.0.0–1.10.0. Unauthenticated attackers can create unlimited user accounts; if NEW_USER_IS_ACTIVE is true, new accounts are immediately active and can authenticate to reach RCE endpoints, bypassing AUTO_LOGIN. IBM CVSS v3.1 base score 9.8 (CRITICAL)...

PT-2026-60865

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description An issue exists in the code validation API endpoint that allows authenticated users to execute arbitrary system commands with the full privileges of the server process. The endpoint...

PT-2026-60866

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description A flaw in the webhook authentication logic allows unauthenticated users to trigger the execution of any flow. The system incorrectly bypasses API key validation when the WEBHOOK AUTH...

PT-2026-60834

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description Improper authentication and access control in the user registration and account provisioning logic allow unauthenticated attackers to create unlimited user accounts. This occurs when...

PT-2026-60862

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description An authenticated attacker can read arbitrary files, including the JWT signing key. This allows the attacker to forge authentication tokens for any user. JWT JSON Web Token is a compact...

PT-2026-60868

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description Improper input validation in the APIRequest component allows an attacker to write arbitrary files to unintended locations. This occurs when the Save to File feature is enabled, as...

PT-2026-60873

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.1 Description An authenticated user can execute arbitrary commands with elevated privileges on the system. This occurs due to improper validation of user-supplied input within the Python Interpreter...

PT-2026-60864

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description A remote code execution issue exists in the disk-based caching mechanism. The AsyncDiskCache class uses the unsafe pickle.loads function to deserialize cached objects from disk without...

PT-2026-60863

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description Authenticated users can override component parameters at runtime via the API. This is caused by a flaw in the parameter filtering mechanism within the apply tweaks function...

PT-2026-60858

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description An authenticated attacker can create a malicious flow that points to a URL under their control. By returning a specially crafted Content-Disposition header, such as...

PT-2026-60860

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description Remote code execution is possible due to incomplete validation enforcement on MCP server configuration files. Recommendations Update IBM Langflow OSS to a version later than 1.10.0...