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CVE-2026-65014

MEDIUM
6.3
CVSS 4.0
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.

Metadata

CVE ID
CVE-2026-65014
State
PUBLISHED
Assigner
VulnCheck
Reserved
2026-07-21 11:32 UTC
Published
2026-07-22 11:21 UTC
Last updated
2026-07-22 12:26 UTC
Primary CWE
CWE-306
Missing Authentication for Critical Function
Vendor / Product
n8n-io / n8n
Sources
cve.org  ·  NVD

Severity & Metrics

6.3 MEDIUM CVSS 4.0
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
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (2)
VendorProductPlatformVersions
n8n-io n8n — 0 < 2.28.0, 2.28.0
n8n-io n8n — 0 < 2.27.4, 2.27.4
Weakness (CWE)
CWESourceDescription
CWE-306 cna Missing Authentication for Critical Function
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.3 MEDIUM 4.0 cna 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
References (2)
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