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CVE-2026-103245

n8n before 1.123.80, 2.39.6, and 2.40.1 Missing Webhook Signature Verification PUBLISHED

Description (CNA)

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 fail to verify the x-webflow-signature HMAC in the Webflow Trigger node webhook handler. Unauthenticated attackers can send forged webhook requests with attacker-controlled payloads to trigger workflows and manipulate downstream actions like record creation or API calls.

Affected (CNA)

Vendor / productVersions
n8n-io / n8naffected 0 before 1.123.80; affected 2.0.0 before 2.39.6; affected 2.40.0 before 2.40.1

CWE

CWE-347

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.