CVE-2026-1470 identifies a critical Remote Code Execution (RCE) vulnerability in the n8n workflow expression evaluation system. The flaw arises when expressions provided by authenticated users during workflow configuration are evaluated within an execution context that lacks proper isolation from the underlying runtime. As a result, an authenticated attacker can exploit this vulnerability to execute arbitrary code with the privileges of the n8n process.
The potential impact of successful exploitation is severe, leading to full compromise of the affected n8n instance. Such an attack may result in unauthorized access to sensitive data, modification of workflows, and execution of system-level operations. Given the critical nature of this vulnerability, organizations utilizing n8n must address it promptly.
With a CVSS score of 9.9, this vulnerability is classified as critical, indicating a high urgency for remediation. Organizations using n8n should prioritize patching to mitigate the risk and protect their systems from potential exploits.
This vulnerability allows for significant risk to organizations, including the possibility of complete system takeover. It is imperative that security teams assess their n8n configurations and take immediate action to ensure they are not vulnerable to this critical flaw.
Vulnerability Details
The official description states that n8n contains a critical Remote Code Execution (RCE) vulnerability in its workflow expression evaluation system. The flaw is identified as CWE-95 and has been assigned a CVSS score of 9.9, indicating a critical severity level.
The affected product is n8n, with the vulnerability impacting versions prior to the patch. The vulnerability was published on January 27, 2026.
Technical Analysis
The root cause of this vulnerability is the insufficient isolation of the execution context for expressions supplied by authenticated users. This lack of isolation allows attackers to execute arbitrary code in the context of the n8n process.
The attack vector is network-based, with low complexity and low privileges required to initiate an attack. User interaction is not necessary, which increases the risk factor. The potential impacts on confidentiality, integrity, and availability are all classified as high, making this a critical vulnerability for n8n deployments.
Risk & Impact Analysis
The risk to organizations includes the potential for full system compromise through the exploitation of this vulnerability. Attackers may leverage this RCE vulnerability to access sensitive data, disrupt operations, and modify critical workflows, leading to severe operational impacts.
Given the CVSS score of 9.9, this vulnerability represents a critical risk. Organizations must prioritize patching immediately and assess their configurations to mitigate exposure to this security flaw.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of n8n include all versions prior to the vendor patch. Organizations should ensure they are running the latest version to mitigate this vulnerability.
Mitigation & Remediation
Organizations must patch their n8n installations immediately to address this critical vulnerability. The latest version should be obtained from the official n8n repository to ensure that all security flaws have been addressed.
In addition to applying patches, organizations should implement configuration hardening and other network controls to further protect their systems. Continuous monitoring and regular audits can help identify any potential vulnerabilities.
Penetration testing can also be utilized to validate the effectiveness of the remediation efforts.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual activity related to workflow configurations and expression evaluations. Behavioral anomalies may indicate attempts to exploit the RCE vulnerability.
Network signatures should be established to identify any malicious traffic patterns associated with the exploitation of this vulnerability. Additionally, monitoring system changes can help in identifying unauthorized modifications.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-1470 highlights the persistent threat of RCE vulnerabilities in widely used applications like n8n. Organizations should learn from this incident and enhance their security posture to prevent similar vulnerabilities from arising in the future.
Security teams must stay informed about emerging threats and trends in vulnerability exploitation to proactively address potential risks. Regular vulnerability assessments and adopting a vulnerability management program can significantly reduce exposure to such vulnerabilities.
In conclusion, CVE-2026-1470 serves as a reminder of the importance of secure coding practices and rigorous testing in application development. Organizations that prioritize security in their development lifecycle are better positioned to defend against similar vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)