Vulnerability Description
n8n is a workflow automation platform. Prior to version 1.99.0, there is a denial of Service vulnerability in /rest/binary-data endpoint when processing empty filesystem URIs (filesystem:// or filesystem-v2://). This allows authenticated attackers to cause service unavailability through malformed filesystem URI requests, effecting the /rest/binary-data endpoint and n8n.cloud instances (confirmed HTTP/2 524 timeout responses). Attackers can exploit this by sending GET requests with empty filesystem URIs (filesystem:// or filesystem-v2://) to the /rest/binary-data endpoint, causing resource exhaustion and service disruption. This issue has been patched in version 1.99.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| N8N | N8N | < 1.99.0 |
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/commit/43c52a8b4f844e91b02e3cc9df92826a2d7b6052Patch
- https://github.com/n8n-io/n8n/pull/16229Patch
- https://github.com/n8n-io/n8n/security/advisories/GHSA-pr9r-gxgp-9rm8PatchThird Party Advisory
FAQ
What is CVE-2025-49595?
CVE-2025-49595 is a vulnerability with a CVSS score of 4.9 (MEDIUM). n8n is a workflow automation platform. Prior to version 1.99.0, there is a denial of Service vulnerability in /rest/binary-data endpoint when processing empty filesystem URIs (filesystem:// or filesys...
How severe is CVE-2025-49595?
CVE-2025-49595 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-49595?
Check the references section above for vendor advisories and patch information. Affected products include: N8N N8N.