CVE-2026-33017 Langflow has Unauthenticated Remote Code Execution via Public Flow Build Endpoint

Langflow is a tool for building and deploying AI-powered agents and workflows. In versions prior to 1.9.0, the POST /api/v1/buildpublictmp/flowid/flow endpoint allows building public flows without requiring authentication. When the optional data parameter is supplied, the endpoint uses...

Langflow 安全漏洞

Langflow is an open-source visualization framework developed by Langflow for building multi-agent and RAG applications. Versions of Langflow prior to 1.9.0 contained a security vulnerability. This vulnerability stemmed from the deleteapikeyroute endpoint, which did not verify the ownership of the...

Langflow 安全漏洞

Langflow is an open-source visualization framework developed by Langflow for building multi-agent and RAG applications. Versions of Langflow prior to 1.9.0 contained a security vulnerability. This vulnerability stems from the /api/v1/buildpublictmp/flowid/flow endpoint, which accepts process data...

langflow-nightly (=1.8.0.dev24) potentially affected by CVE-2026-33309 via langflow-base (=0.7.2)

langflow-base PYPI version =0.7.2 is affected by a known vulnerability. The following packages have a transitive dependency on langflow-base and may be impacted: - langflow-nightly =1.8.0.dev24 Source cves: CVE-2026-33309 Source advisory: SNYK:PYTHON-LANGFLOWBASE-15702032...

External Control of File Name or Path

Overview Affected versions of this package are vulnerable to External Control of File Name or Path in the POST /api/v2/files/ endpoint. An attacker can execute arbitrary code, overwrite critical files, or gain unauthorized access by uploading files with crafted filenames that bypass containment...

GHSA-G2J9-7RJ2-GM6C Langflow has an Arbitrary File Write (RCE) via v2 API

Summary While reviewing the recent patch for CVE-2025-68478 External Control of File Name in v1.7.1, I discovered that the root architectural issue within LocalStorageService remains unresolved. Because the underlying storage layer lacks boundary containment checks, the system relies entirely on...

Langflow has an Arbitrary File Write (RCE) via v2 API

Summary While reviewing the recent patch for CVE-2025-68478 External Control of File Name in v1.7.1, I discovered that the root architectural issue within LocalStorageService remains unresolved. Because the underlying storage layer lacks boundary containment checks, the system relies entirely on...

GHSA-VWMF-PQ79-VJVX Unauthenticated Remote Code Execution in Langflow via Public Flow Build Endpoint

Summary The POST /api/v1/buildpublictmp/flowid/flow endpoint allows building public flows without requiring authentication. When the optional data parameter is supplied, the endpoint uses attacker-controlled flow data containing arbitrary Python code in node definitions instead of the stored flow...

langflow-nightly (=1.8.0.dev24) potentially affected by CVE-2026-33017 via langflow-base (=0.7.2)

langflow-base PYPI version =0.7.2 is affected by a known vulnerability. The following packages have a transitive dependency on langflow-base and may be impacted: - langflow-nightly =1.8.0.dev24 Source cves: CVE-2026-33017 Source advisory: SNYK:PYTHON-LANGFLOWBASE-15680351...

Missing Authentication for Critical Function

Overview Affected versions of this package are vulnerable to Missing Authentication for Critical Function in the POST /api/v1/buildpublictmp/flowid/flow endpoint when attacker-controlled flow data is supplied to the data parameter, which is then executed using exec without authentication or...

Exploit for Inclusion of Functionality from Untrusted Control Sphere in Langflow

Langflow Exploit Tool - CVE-2026-0770 📋 Table of Contents...

GHSA-3645-FXCV-HQR4 Langflow has Remote Code Execution in CSV Agent

Summary The CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes LangChain’s Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python and OS commands on the server via prompt injection, leading to full Remote Code Execution RCE...

Langflow has Remote Code Execution in CSV Agent

Summary The CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes LangChain’s Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python and OS commands on the server via prompt injection, leading to full Remote Code Execution RCE...

EUVD-2026-8819

Langflow has Remote Code Execution in CSV Agent...

CVE-2026-27966

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes LangChain’s Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python an...

dzbanek-langflow-base (>=0.6.0 <=0.6.1), langflow-base (>=0.7.0 <=0.7.3) +1 more potentially affected by CVE-2026-27966 via lfx (>=0.1.13 <=0.2.2)

lfx PYPI version =0.1.13, =0.6.0, =0.7.0, =0.7.3 - langflow-nightly =1.8.0.dev24 Source cves: CVE-2026-27966 Source advisory: SNYK:PYTHON-LFX-15357988...

Arbitrary Code Injection

Overview lfx is a lfx is a command-line tool for running Langflow workflows. It provides two main commands: serve and run. Affected versions of this package are vulnerable to Arbitrary Code Injection via the allowdangerouscode=True which automatically exposes LangChain’s Python REPL tool...

CVE-2026-27966

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes LangChain’s Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python an...

CVE-2026-27966

Langflow before version 1.8.0 exposes a remote code execution risk through the CSV Agent node by hardcoding allow_dangerous_code=True, which enables Python REPL access (python_repl_ast) via prompt injection. This allows an attacker to execute arbitrary Python/OS commands on the server. The issue ...

CVE-2026-27966 Langflow has Remote Code Execution in CSV Agent

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes LangChain’s Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python an...