Vulnerability Report

CVE-2025-49595

Title: N8N Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2025-49595.

CWE Category CWE-400
Published Date Jul 03, 2025
Modified Date Sep 04, 2025
Exploit Status Not Found
Score 4.9 CVSS v3.1
Exploit Probability (EPSS)
0.38%

Vulnerability Summary

CVE-2025-49595: 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.

Impacted Vendors

N
n8n 1

Reference Links

https://github.com/n8n-io/n8n/commit/43c52a8b4f844e91b02e3cc9df92826a2d7b6052 https://github.com/n8n-io/n8n/pull/16229 https://github.com/n8n-io/n8n/security/advisories/GHSA-pr9r-gxgp-9rm8
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.9
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-49595 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

MODIFIED

Vulnerability data updated via NVD.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.