What is the CVSS score of CVE-2025-56265?

CVE-2025-56265 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of N8n are affected by CVE-2025-56265?

Organizations using the Chat Trigger component of N8N face significant risk from CVE-2025-56265, a unrestricted file upload vulnerability rated CVSS 8.8.. A patch is available.

Is there a public PoC exploit available for CVE-2025-56265?

Yes, a public proof-of-concept exploit is available for CVE-2025-56265. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-56265?

Within 7 days: Identify all affected systems running the Chat Trigger component of N8N and apply vendor patches promptly. Review file handling controls and restrict upload directories.

N8n CVE-2025-56265

HIGH

Unrestricted Upload of File with Dangerous Type (CWE-434)

2025-09-08 cve@mitre.org

RCE File Upload N8n

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 19:11 vuln.today

PoC Detected

Sep 12, 2025 - 20:47 vuln.today

Public exploit code

CVE Published

Sep 08, 2025 - 18:15 nvd

HIGH 8.8

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

3 npm packages depend on @n8n/n8n-nodes-langchain (3 direct, 0 indirect)

Ecosystem-wide dependent count for version 1.107.0.

DescriptionCVE.org

An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3, v1.100.1, and v1.101.1 allows attackers to execute arbitrary code via uploading a crafted HTML file.

AnalysisAI

An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3, v1.100.1, and v1.101.1 allows attackers to execute arbitrary code via uploading a crafted HTML file. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3, v1.100.1, and v1.101.1 allows attackers to execute arbitrary code via uploading a crafted HTML file. Affected products include: N8N.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.