CVE-2026-72768
Medium
Elevated severity or exploit probability.
CVSS base
8.3
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
EPSS — probability of exploitation (30 days)
0.2%
13.5th percentile
CISA KEV
Not listed
Weakness / dates
CWE-918
Published 2026-08-11 · modified 2026-09-01
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | L | Low |
Timeline
- 2026-08-11 — Published (NVD)
- 2026-09-01 — Last modified (NVD)
Description
n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection, exposing internal services and reading responses back through the workflow.