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...

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...

Security Bulletin: Parameter Injection Vulnerability in API Graph Execution Engine

Summary A parameter injection vulnerability existed in the API Graph Execution Engine's tweaks processing mechanism. The vulnerability allowed authenticated attackers to bypass security controls and inject malicious parameters into flow components at runtime. An attacker with valid API credential...

Security Bulletin: Remote Code Execution in CUGA Component CodeAgent

Summary An authenticated user could execute arbitrary commands on the server when the CUGA component is installed and a flow using CUGA's CodeAgent is created and executed. The vulnerability exists in the CodeAgent's Python code execution path, which permits object graph introspection to recover...

CVE-2026-7871

IBM Langflow OSS 1.0.0 through 1.10.0 allows users with Redis access to execute arbitrary code with full application privileges, compromising all secrets, data, and system integrity...

CVE-2026-10546

IBM Langflow OSS 1.0.0 through 1.9.3 contains a Server-Side Request Forgery SSRF vulnerability in the URL component src/lfx/src/lfx/components/datasource/url.py due to a Time-of-Check/Time-of-Use TOCTOU race condition that can be exploited via DNS rebinding...

EUVD-2026-40401

IBM Langflow OSS 1.0.0 through 1.9.6 contains a missing authentication vulnerability in /api/v1/buildpublictmp/ endpoints that allows an unauthenticated attacker to read build event data or cancel jobs using a valid job identifier, resulting in information disclosure and denial of service...

CVE-2026-10560 Unauthenticated Access to Private Flow Build Events and Cancellation in Langflow OSS

IBM Langflow OSS 1.0.0 through 1.9.6 contains a missing authentication vulnerability in /api/v1/buildpublictmp/ endpoints that allows an unauthenticated attacker to read build event data or cancel jobs using a valid job identifier, resulting in information disclosure and denial of service...

CVE-2026-7663

Langflow OSS 1.0.0–1.9.6 is affected by an improper authorization vulnerability in the Streamable MCP transport endpoint (/api/v1/mcp/project/{project_id}/streamable) that allows unauthenticated attackers to access protected MCP resources and perform MCP operations. IBM bulletin cites cross‑user ...

EUVD-2026-40380

IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow disclosure of all stored credentials due to the use of a weak and reversible key derivation mechanism for encryption at rest...

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...

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...

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...

EUVD-2026-38245

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...