CVE-2026-105699 Langflow: Authenticated Cross-Project File Disclosure via Unscoped MCP Resource Handlers

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.6.8 until 1.9.1, Langflow authenticated access to the project identifier in a project-scoped MCP connection but did not authorize the resource URI supplied to resources/read. readresource forwarded the...

CVE-2026-105699 Langflow: Authenticated Cross-Project File Disclosure via Unscoped MCP Resource Handlers

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.6.8 until 1.9.1, Langflow authenticated access to the project identifier in a project-scoped MCP connection but did not authorize the resource URI supplied to resources/read. readresource forwarded the...

CVE-2026-105699

Langflow versions 1.6.8 through 1.9.1 are vulnerable to an authenticated cross-project file disclosure due to unscscoped MCP resource handlers. The application validates project identifiers but fails to authorize the resource URI provided to resources/read. Consequently, an attacker can bypass pr...

CVE-2026-105699 Langflow: Authenticated Cross-Project File Disclosure via Unscoped MCP Resource Handlers

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.6.8 until 1.9.1, Langflow authenticated access to the project identifier in a project-scoped MCP connection but did not authorize the resource URI supplied to resources/read. readresource forwarded the...

CVE-2026-105698 Langflow: Cross-user flow access and vertex execution via deprecated /api/v1/build/{flow_id}/vertices endpoints

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.0.0 until 1.10.1, Langflow did not verify flow ownership in the deprecated POST /api/v1/build/flowid/vertices and POST /api/v1/build/flowid/vertices/vertexid handlers. Through version 1.7.1, an unauthenticated...

CVE-2026-105698 Langflow: Cross-user flow access and vertex execution via deprecated /api/v1/build/{flow_id}/vertices endpoints

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.0.0 until 1.10.1, Langflow did not verify flow ownership in the deprecated POST /api/v1/build/flowid/vertices and POST /api/v1/build/flowid/vertices/vertexid handlers. Through version 1.7.1, an unauthenticated...

CVE-2026-105698

Langflow (versions 1.0.0 through 1.10.0) is vulnerable to cross-user flow access and unauthorized vertex execution due to a missing ownership check in deprecated handlers. Specifically, the POST /api/v1/build/{flow_id}/vertices and POST /api/v1/build/{flow_id}/vertices/{vertex_id} endpoints faile...

CVE-2026-105697 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Langflow is a tool for building and deploying AI-powered agents and workflows. Before Langflow 1.10.3, the MCP stdio transport launched whatever command / args a user put in an MCP server configuration, with no allowlist and before 1.10.3 wrapped in bash -c "exec command ...". Any user able to...

CVE-2026-105697 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Langflow is a tool for building and deploying AI-powered agents and workflows. Before Langflow 1.10.3, the MCP stdio transport launched whatever command / args a user put in an MCP server configuration, with no allowlist and before 1.10.3 wrapped in bash -c "exec command ...". Any user able to...

CVE-2026-105697

Langflow versions prior to 1.10.3 are vulnerable to OS command injection due to a lack of allowlisting in the MCP stdio transport configuration. An attacker capable of accessing MCP server settings or using the MCP Tools component can execute arbitrary OS commands (e.g., rm -rf, reverse shells) o...

CVE-2026-105697 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Langflow is a tool for building and deploying AI-powered agents and workflows. Before Langflow 1.10.3, the MCP stdio transport launched whatever command / args a user put in an MCP server configuration, with no allowlist and before 1.10.3 wrapped in bash -c "exec command ...". Any user able to...

PoC-CVE-2026-9198

Description Proof of concept exploit code for CVE-2026-9198 Exploit-DB entry: https://www.exploit-db.com/exploits/52675 Usage python3 poc.py -u -c...

CVE-2026-33017-Langflow-RCE

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CVE-2026-33017

CVE-2026-33017 - Langflow Unauthenticated RCE ⚠️ DISCLAIMER: This repository is for authorized security testing and educational purposes only. Use only on systems you own or have explicit permission to test. The author is not responsible for any misuse or damage caused by this tool. Overview...

CVE-2026-5027

Этот пост представляет собой исследовательскую статью, опубликованную EQSTLab. БлагодаримYahia Hamza, который сообщил об этой уязвимости и проанализировал её. CVE-2026-5027 ★ CVE-2026-5027 Langflow Path Traversal / Arbitrary File Write PoC ★ Описание CVE-2026-5027 : Уязвимость произвольной записи...

PT-2026-106232

Name of the Vulnerable Software and Affected Versions Langflow versions prior to 1.10.3 langflow-base versions prior to 0.10.3 lfx versions prior to 1.10.3 Description An issue exists in the MCP stdio transport where the software executes commands and arguments provided in an MCP server...

PT-2026-106233

Name of the Vulnerable Software and Affected Versions Langflow versions 1.0.0 through 1.10.0 Description Langflow fails to verify flow ownership in the deprecated 'POST /api/v1/build/flow id/vertices' and 'POST /api/v1/build/flow id/vertices/vertex id' endpoints. In versions prior to 1.7.2, these...

PT-2026-106234

Name of the Vulnerable Software and Affected Versions Langflow versions 1.6.8 through 1.9.0 Description Langflow fails to properly authorize the resource URI provided to the resources/read endpoint. The read resource function forwards the attacker-controlled URI to handle read resource, which...

PT-2026-106235

Name of the Vulnerable Software and Affected Versions Langflow versions prior to 1.9.0 Description Authenticated users can achieve Remote Code Execution RCE on the server by adding a Model Context Protocol MCP server using the "Stdio" transport. The command field is passed directly to bash -c "ex...

PT-2026-106236

Name of the Vulnerable Software and Affected Versions Langflow versions 1.5.0 through 1.10.2 Description An IP spoofing issue exists in the Model Context Protocol MCP configuration installation endpoint 'POST /api/v1/mcp/project/project id/install'. Authenticated remote attackers can bypass the...