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CVE-2026-21894

n8n is an open source workflow automation platform. In versions from 0.150.0 to before 2.2.2, an authentication bypass vulnerability in the Stripe Trigger node allows unauthenticated parties to trigger workflows by sending forged Stripe webhook events. The Stripe Trigger creates and stores a Stripe webhook signing secret when registering the webhook endpoint, but incoming webhook requests were not verified against this secret. As a result, any HTTP client that knows the webhook URL could send a
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:662ab75081ad474df44336092615f352387a791861aa847d180033fbd0bf71db
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"n8n","vendor":"n8n-io","versions":[{"status":"affected","version":">= 0.150.0, < 2.2.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e61f78b9bd7955892862a7b72f2c20624be4574344ec096c85f23264faab9749 · sha256:c8b8ce6724b66cf9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e61f78b9bd7955892862a7b72f2c20624be4574344ec096c85f23264faab9749 · sha256:c8b8ce6724b66cf9… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-290","description":"CWE-290: Authentication Bypass by Spoofing","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e61f78b9bd7955892862a7b72f2c20624be4574344ec096c85f23264faab9749 · sha256:c8b8ce6724b66cf9… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/n8n-io/n8n/commit/a61a5991093c41863506888336e808ac1eff8d59","tags":["x_refsource_MISC"],"url":"https://github.com/n8n-io/n8n/commit/a61a5991093c41863506888336e808ac1eff8d59"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e61f78b9bd7955892862a7b72f2c20624be4574344ec096c85f23264faab9749 · sha256:c8b8ce6724b66cf9… · /containers/cna/references/2
{"name":"https://github.com/n8n-io/n8n/pull/22764","tags":["x_refsource_MISC"],"url":"https://github.com/n8n-io/n8n/pull/22764"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e61f78b9bd7955892862a7b72f2c20624be4574344ec096c85f23264faab9749 · sha256:c8b8ce6724b66cf9… · /containers/cna/references/1
{"name":"https://github.com/n8n-io/n8n/security/advisories/GHSA-jf52-3f2h-h9j5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-jf52-3f2h-h9j5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e61f78b9bd7955892862a7b72f2c20624be4574344ec096c85f23264faab9749 · sha256:c8b8ce6724b66cf9… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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