CVE-2026-71539 n8n-io CVE debrief

Who should care

Defenders responsible for n8n workflow automation platforms, especially those with authenticated workflow users who can manipulate Git node clone operations, should assess exposure and prioritize patching or mitigation.

Why it matters

CVE-2026-71539 is a high-severity vulnerability in the n8n workflow automation platform that allows authenticated users to execute arbitrary code on the server by manipulating the Git node clone operation. Defenders should prioritize patching or mitigating this vulnerability, especially in environments where authenticated workflow users have the potential to manipulate Git node clone operations.

• Potential for authenticated users to execute arbitrary code on the server
• Possible lateral movement or escalation of privileges
• Need for patching or mitigating the vulnerability to prevent exploitation
• Importance of monitoring for suspicious activity related to Git node clone operations

Technical summary

The Git node clone operation in n8n allows an authenticated workflow user to swap a validated directory for a symlink before cloning, potentially leading to arbitrary code execution on the server after a restart. This issue is fixed in versions 1.123.64, 2.29.8, and 2.30.1. The vulnerability has a high CVSS score of 8.9 and is considered a high-severity issue. Defenders should prioritize patching or mitigating this vulnerability, especially in environments where authenticated workflow users have the potential to manipulate Git node clone operations.

Defensive priority

Defenders should prioritize patching or mitigating this vulnerability, especially in environments where authenticated workflow users have the potential to manipulate Git node clone operations.

Recommended defensive actions

• Patch n8n to version 1.123.64, 2.29.8, or 2.30.1
• Restrict authenticated workflow user access to Git node clone operations
• Monitor for suspicious activity related to Git node clone operations
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. However, the corpus does not provide explicit information on in-the-wild exploitation or specific attack vectors.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.