PT-2026-53949

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.0 Description Authenticated attackers can execute arbitrary OS commands and read sensitive files, including credentials. This can lead to complete system compromise and lateral movement within the...

PT-2026-53955

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.9.3 Description The API Request component contains a Server-Side Request Forgery SSRF protection bypass. An authenticated attacker with flow author privileges can bypass security controls by enabling t...

PT-2026-53958

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.9.6 Description A missing authentication flaw exists in the /api/v1/build public tmp/ endpoints. This allows an unauthenticated attacker to use a valid job identifier to read build event data or cancel...

Security Bulletin: Code Injection via Custom Component Endpoint with Authentication Bypass

Summary A code injection vulnerability was identified in the custom component endpoint that allowed execution of arbitrary Python code through the component creation process. The vulnerability was compounded by an authentication bypass feature where AUTOLOGIN was enabled by default, allowing...

Security Bulletin: Insecure Deserialization in Redis Cache Backend

Summary A deserialization vulnerability was identified in the Redis cache service that could allow attackers with network access to the Redis instance to execute arbitrary code. The cache service used dill.loads to deserialize cached values without integrity verification, enabling attackers to...

Security Bulletin: SSRF Vulnerability in Langflow OSS Legacy Components Bypasses Protection

Summary Langflow OSS versions = 1.9.3 contain SSRF vulnerability in legacy RSS Reader and SearXNG components that bypass SSRF protection introduced in v1.9.3. RSSReaderComponent calls requests.getself.rssurl directly on user input without validateurlforssrf check, completely bypassing protection...

Security Bulletin: DNS Rebinding TOCTOU Bypass of SSRF Protection in Langflow OSS URL Component

Summary Langflow OSS contains DNS rebinding TOCTOU vulnerability bypassing SSRF protection. URL component validates URLs with validateurlforssrf but fetches via RecursiveUrlLoader performing independent DNS resolution, creating exploitable TOCTOU window. Maintainers fixed identical issue in...

CVE-2026-7664

IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint...

CVE-2026-7664

Summary: IBM Langflow OSS versions 1.0.0–1.8.4 are affected by an unauthenticated access issue due to improper authorization enforcement on the Streamable MCP transport endpoint, potentially allowing access to protected MCP project resources and execution of MCP operations. Affected products/vers...

CVE-2026-10561 Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection

IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined with an authentication bypass that allows an unauthenticated attacker to execute arbitrary code on the host system, resulting in complete compromise...

Security Bulletin: Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection

Summary Langflow OSS contains unauthenticated RCE vulnerability in PythonREPLComponent "Python Interpreter". Component's getglobals builds restricted globals dict from globalimports whitelist default: "math" but never sets globals"builtins" = . CPython's exec automatically inserts full builtins...

CVE-2026-7787

CVE-2026-7787 affects Langflow OSS versions 1.0.0–1.9.1. A session ID namespace bypass in the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint allows unauthenticated attackers to read or modify chat history by overriding the session_id used during flow execution when a PUBLIC flow includes a...

Security Bulletin: Langflow OSS affected by vulnerabilies in Axios versions prior to 1.15.0

Summary Langflow OSS affected by vulnerabilies in Axios versions prior to 1.15.0 Vulnerability Details CVEID:CVE-2025-62718 DESCRIPTION: Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checki...

CVE-2026-7528 Unauthenticated File Upload Vulnerability Allows Disk Space Exhaustion and Path Disclosure in Langflow OSS

IBM Langflow OSS 1.0.0 through 1.9.0 could allow a denial of service due to uncontrolled resource consumption...