VULNERABILITY INTELLIGENCE

CVE-2026-65014

CVSS score5.3 MEDIUM
EPSS probability0.59%
CISA KEVNot currently listed
Published2026-07-22
Last modified2026-10-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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

  • disclosure@vulncheck.com: CWE-306

Primary references