CVE-2026-8859 Path Traversal in APIRequest Component via Content-Disposition Header

IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow an attacker to write arbitrary files to unintended locations due to improper input validation in the APIRequest component. A path traversal vulnerability exists when the "Save to File" feature is enabled, where filenames extracted from HT...

CVE-2026-8859

Langflow OSS (versions 1.0.0–1.10.0) contains a path traversal vulnerability in the APIRequest component when the Save to File feature is enabled. Filenames parsed from HTTP Content-Disposition headers are not sanitized, allowing an attacker-controlled server to craft paths (e.g., ../) and writ...

EUVD-2026-45258

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to gain unauthorized access due to improper authentication in the /api/v1/login/autologin endpoint. The endpoint issues long-lived superuser bearer tokens without requiring authentication when the AUTOLOGIN configuration is enabl...

CVE-2026-9103 Unauthenticated Superuser Token Issuance via Auto-Login Endpoint

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to gain unauthorized access due to improper authentication in the /api/v1/login/autologin endpoint. The endpoint issues long-lived superuser bearer tokens without requiring authentication when the AUTOLOGIN configuration is enabl...

CVE-2026-9103

CVE-2026-9103 affects Langflow OSS 1.0.0–1.10.0. The root cause is improper authentication in the /api/v1/login/auto_login endpoint, which issues long‑lived superuser tokens when AUTO_LOGIN is enabled (default). Combined with permissive CORS, this can expose tokens to unintended origins and enabl...

CVE-2026-9135 Policies Component Dynamic CodeInput Fields Bypass Custom Component Validation

IBM Langflow OSS 1.0.0 through 1.10.0 Langflow versions up to 1.9.2 commit 94981c443d4918517b9e8163d70fc598dc33a32d contain a code injection vulnerability in the Policies component's ToolGuard integration that bypasses the allowcustomcomponents=false security control. The vulnerability exists...

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-2026-9202

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 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

IBM Langflow OSS versions 1.0.0–1.10.0 are affected by CVE-2026-9198: unauthenticated attackers chain /api/v1/auto_login (issues superuser tokens) with /api/v1/validate/code (exec() of user code) to achieve full RCE on default deployments. The root cause is the combination of an open auto-login e...

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-2026-60862

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-2026-60865

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...