764 matches found
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...
Security Bulletin: Unauthenticated Server-Side RCE via PythonCodeStructuredTool in Public Flows
Summary Langflow OSS contains unauthenticated server-side RCE via PythonCodeStructuredTool executing attacker-controlled Python through exec at flow-build time. Sink in execself.toolcode, globals, localnamespace where toolcode is attacker-controlled template field. Two paths: A Authenticated POST...
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-2026-10561
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...
CVE-2026-7664 Unauthenticated Flow Execution via Webhook Endpoint in Langflow OSS
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...
EUVD-2026-38281
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
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...
CVE-2026-10561
Affected product: Langflow OSS (1.0.0–1.9.3). Vulnerability: Unauthenticated remote code execution via improper isolation of Python execution in the PythonREPLComponent, combined with an authentication bypass. CPython’s exec() uses a globals dict without correctly restricting builtins, allowing a...
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...
CVE-2026-12822
A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in...
PT-2026-51341
Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.8.4 Description Improper authorization enforcement in the Streamable MCP transport endpoint allows unauthenticated attackers to access protected MCP project resources and execute MCP operations...
PT-2026-51298
Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.9.3 Description Improper isolation of Python execution combined with an authentication bypass allows an unauthenticated remote attacker to execute arbitrary code on the host system, leading to a comple...
CVE-2026-12822
A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in...
CVE-2026-12822
Langflow AI langflow
CVE-2026-12822 langflow-ai langflow Bundle URL Loader code injection
A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in...
Security Bulletin: Unauthenticated Flow Execution via Webhook Endpoint in Langflow OSS
Summary Langflow OSS POST /api/v1/webhook/flowid executes any user's flow without authentication by default. Setting WEBHOOKAUTHENABLE defaults to False in auth configuration. When False, webhook handler calls getuserbyflowidorendpointname and trusts caller unconditionally with no credential chec...
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...
PT-2026-51264
Name of the Vulnerable Software and Affected Versions langflow-ai langflow versions prior to 1.9.4 Description An issue exists in the Bundle URL Loader component where manipulation of an unknown function allows for code injection. This attack must be performed locally. Recommendations At the...