CVE-2026-65014 (GCVE-0-2026-65014)

Vulnerability from cvelistv5 – Published: 2026-07-22 11:21 – Updated: 2026-07-22 12:26
VLAI
Title
n8n before 2.28.0 Authentication Bypass via test-webhook
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version
n8n-io n8n Affected: 0 , < 2.28.0 (semver)
Unaffected: 2.28.0 (semver)
Create a notification for this product.
n8n-io n8n Affected: 0 , < 2.27.4 (semver)
Unaffected: 2.27.4 (semver)
Create a notification for this product.
Date Public
2026-07-08 00:00
Show details on NVD website

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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