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.
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Thu, 03 Jul 2025 14:15:00 +0000
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Thu, 03 Jul 2025 12:45:00 +0000
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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. | |
Title | n8n Vulnerable to Denial of Service via Malformed Binary Data Requests | |
Weaknesses | CWE-400 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-07-03T12:16:47.207Z
Updated: 2025-07-03T13:14:59.815Z
Reserved: 2025-06-06T15:44:21.557Z
Link: CVE-2025-49595

Updated: 2025-07-03T13:13:37.482Z

Status : Awaiting Analysis
Published: 2025-07-03T13:15:28.690
Modified: 2025-07-03T15:13:53.147
Link: CVE-2025-49595

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