Dashboard / CVE-2026-65014

CVE-2026-65014

MEDIUM
MEDIUM Priority: 0.04 BB Relevance: 73/100
Published: 2026-07-22 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: Present
VC: None
VI: None
VA: Low

Description

n8n before 2.28.0 (and before 2.27.4 on the 2.27.x branch) registers the DELETE /${restEndpoint}/test-webhook/:id endpoint before authentication middleware is applied, allowing any unauthenticated network caller who knows a workflow ID to cancel that workflow's active test webhook registration. The impact is limited to disrupting in-progress test sessions; production webhooks, persistent workflow state, and stored data are not affected.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
n8n n8n 2.27.0 – 2.27.4
n8n n8n 2.27.0 – 2.27.4
n8n-io n8n 0 < 2.27.4
n8n-io n8n 0 < 2.27.4

References & Advisories (2)

Bug Bounty Relevance

73 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.59%
Raw Score 0.005900
Percentile 48.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00590
2026-10-28
0.00590

Intelligence Sources

mitre ref →
nvd ref →

External Links