CVE-2026-65014

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 75% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 4 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

July 22, 2026

Last Modified

July 22, 2026

Advisory Details (2)

Auto-updated Jul 22, 2026
Patch available. Sources: github.
generic

n8n before 2.28.0 Authentication Bypass via test-webhook | Advisories | VulnCheck

https://www.vulncheck.com/advisories/n8n-before-authentication-bypass-via-test-webhook
github Patch Available

Unauthenticated Endpoint Allows Cancellation of Any User's Active Test Webhook · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-33q9-f52j-gc75

Vendor Advisories for CVE-2026-65014(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
n8n—2.27.4—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 38× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-27 09:59 UTCEG score recompute
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-26 09:50 UTCEG score recompute
  5. 2026-07-25 14:18 UTCEPSS rescore
  6. 2026-07-25 14:18 UTCEPSS rescore
  7. 2026-07-24 14:18 UTCEPSS rescore
  8. 2026-07-24 14:18 UTCEPSS rescore
  9. 2026-07-23 14:18 UTCEPSS rescore
  10. 2026-07-23 14:18 UTCEPSS rescore
  11. 2026-07-23 03:22 UTCEG score recompute
  12. 2026-07-22 22:07 UTCEG score recompute
  13. 2026-07-22 22:07 UTCGHSA enrichment
  14. 2026-07-22 13:38 UTCEG score recompute
  15. 2026-07-22 13:38 UTCGHSA enrichment
  16. 2026-07-22 13:33 UTCGHSA enrichment
  17. 2026-07-22 13:26 UTCGHSA enrichment
  18. 2026-07-22 13:23 UTCGHSA enrichment
  19. 2026-07-22 13:22 UTCGHSA enrichment
  20. 2026-07-22 13:21 UTCGHSA enrichment
  21. 2026-07-22 13:17 UTCGHSA enrichment
  22. 2026-07-22 13:15 UTCGHSA enrichment
  23. 2026-07-22 13:14 UTCGHSA enrichment
  24. 2026-07-22 13:14 UTCGHSA enrichment
  25. 2026-07-22 13:09 UTCGHSA enrichment
Show 13 more
  1. 2026-07-22 13:08 UTCGHSA enrichment
  2. 2026-07-22 13:02 UTCGHSA enrichment
  3. 2026-07-22 13:00 UTCGHSA enrichment
  4. 2026-07-22 12:59 UTCGHSA enrichment
  5. 2026-07-22 12:59 UTCGHSA enrichment
  6. 2026-07-22 12:56 UTCGHSA enrichment
  7. 2026-07-22 12:54 UTCGHSA enrichment
  8. 2026-07-22 12:53 UTCGHSA enrichment
  9. 2026-07-22 12:51 UTCGHSA enrichment
  10. 2026-07-22 12:50 UTCGHSA enrichment
  11. 2026-07-22 12:49 UTCGHSA enrichment
  12. 2026-07-22 11:32 UTCEG score recompute
  13. 2026-07-22 11:32 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-65014?
CVE-2026-65014 is a medium vulnerability published on July 22, 2026. 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…
When was CVE-2026-65014 disclosed?
CVE-2026-65014 was first published in the National Vulnerability Database on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65014 actively exploited?
CVE-2026-65014 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 75.1% of all scored CVEs.
What is the CVSS score of CVE-2026-65014?
CVE-2026-65014 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-65014?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65014, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-65014

Explore →

Is Your Infrastructure Affected by CVE-2026-65014?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs