Incorrect Authorization

Overview n8n is a n8n Workflow Automation Tool Affected versions of this package are vulnerable to Incorrect Authorization in the shared workflows. An attacker can gain unauthorized access to credentials belonging to other users by exploiting insufficient ownership checks via specific public API...

GHSA-F77H-J2V7-G6MW n8n Vulnerable to Hijacking of Unauthenticated Chat Execution

Impact The /chat WebSocket endpoint used by the Chat Trigger node's Hosted Chat feature did not verify that an incoming connection was authorized to interact with the target execution. An unauthenticated remote attacker who could identify a valid execution ID for a workflow in a waiting state cou...

n8n has XSS in Chat Trigger Node through Custom CSS

Impact An authenticated user with permission to create or modify workflows could inject malicious JavaScript into the Custom CSS field of the Chat Trigger node. Due to a misconfiguration in the sanitize-html library, the sanitization could be bypassed, resulting in stored XSS on the public chat...

CVE-2026-33665

n8n is an open source workflow automation platform. Prior to versions 2.4.0 and 1.121.0, when LDAP authentication is enabled, n8n automatically linked an LDAP identity to an existing local account if the LDAP email attribute matched the local account's email. An authenticated LDAP user who could...

CVE-2026-27577

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, additional exploits in the expression evaluation of n8n have been identified and patched following CVE-2025-68613. An authenticated user with permission to create or modify workflows could abuse...

GHSA-F3F2-MCXC-PWJX n8n: SQL Injection in MySQL, PostgreSQL, and Microsoft SQL nodes

Impact An authenticated user with permission to create or modify workflows and access to a database credential could unknowingly create a workflow that was vulnerable to SQL injection, even while expecting inputs to be handled safely through escaped parameters. By supplying specially crafted tabl...

CVE-2026-27497

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could leverage the Merge node's SQL query mode to execute arbitrary code and write arbitrary files on the n8n server. The issues...

CVE-2026-27498 n8n has Arbitrary Command Execution via File Write and Git Operations

n8n is an open source workflow automation platform. Prior to versions 2.2.0 and 1.123.8, an authenticated user with permission to create or modify workflows could chain the Read/Write Files from Disk node with git operations to achieve remote code execution. By writing to specific configuration...

GHSA-49MX-FJ45-Q3P6 n8n's Unsafe Buffer Allocation Allows In-Process Memory Disclosure in Task Runner

Impact The use of Buffer.allocUnsafe and Buffer.allocUnsafeSlow in the task runner allowed untrusted code to allocate uninitialized memory. Such uninitialized buffers could contain residual data from within the same Node.js process for example, data from prior requests, tasks, secrets, or tokens,...

PT-2026-6403

Impact Vulnerabilities in the Git node allowed authenticated users with permission to create or modify workflows to execute arbitrary system commands or read arbitrary files on the n8n host. Patches The issue has been fixed in n8n versions 2.5.0, and 1.123.10. Users should upgrade to this version...

Improper Validation of Specified Type of Input

Overview n8n is a n8n Workflow Automation Tool Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input that is passed to the handleFormData function. An attacker can gain unauthorized access to files on the underlying server by requests with unexpected...

PT-2025-53606

Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.0.0 Description n8n is a workflow automation platform. In self-hosted instances before version 2.0.0, when the Code node operates in legacy JavaScript execution mode, authenticated users with workflow editing permission...