n8n: Multiple Vulnerabilities
A remote, authenticated attacker can exploit multiple vulnerabilities in the n8n application to perform SQL injection, bypass security measures, disclose confidential information, manipulate data, or cause a denial-of-service condition.
The German Federal Office for Information Security (BSI) has issued a high-severity alert regarding multiple vulnerabilities within the n8n automation platform. These flaws can be leveraged by a remote, authenticated attacker. While specific CVEs were not detailed in the advisory, the vulnerabilities collectively enable SQL injection, circumvention of security controls, unauthorized disclosure of sensitive data, data manipulation, and denial-of-service attacks. The requirement for prior authentication means an attacker would first need to gain access to a legitimate user's credentials or compromise a session. The widespread use of n8n in enterprise automation workflows makes these vulnerabilities particularly critical, as successful exploitation could lead to significant data breaches, operational disruption, and integrity compromises across integrated systems. Defenders should prioritize patching and robust authentication measures.
Attack Chain
[No detailed attack chain available in the source material. The advisory describes potential exploit outcomes rather than a step-by-step process.]
Impact
Should an attacker successfully exploit these vulnerabilities, organizations utilizing n8n could face severe consequences. The ability to perform SQL injection implies a risk of full database compromise, leading to mass exfiltration of sensitive user data, customer records, or proprietary business logic. Bypassing security measures could allow the attacker to escalate privileges or move laterally within the n8n environment and potentially connected systems. Data manipulation could lead to fraudulent transactions, corrupted business records, or altered automation workflows, causing operational chaos and financial loss. Finally, the threat of denial-of-service could render critical automation processes inoperable, severely disrupting business continuity.
Recommendation
- Prioritize updating all n8n instances to the latest secure version immediately to address the underlying vulnerabilities.
- Implement strong authentication policies, including multi-factor authentication, for all n8n users to mitigate the risk posed by authenticated attackers.
- Monitor n8n application logs for unusual activities, failed authentication attempts, and SQL injection patterns.