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EUVD-2026-42258Published

n8n before versions 1.123.18 and 2.6.2 fails to verify HMAC-SHA256 signatures on Zendesk webhooks in the ZendeskTrigger node. Attackers who know the webhook URL can send unsigned POST requests to trigger workflows with arbitrary malicious d…

Exact source revision recorded 1 Nov 2026 10:14:23 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2026-42258

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Jul 8, 2026, 1:49:03 PM

dateUpdated: Jul 8, 2026, 2:26:33 PM

1 related source bulletins · separate from aliases

NCSC-2026-0248: Kwetsbaarheden verholpen in n8n workflow automation platform

CVE-2026-27493 · CVE-2026-27494 · CVE-2026-27495 · CVE-2026-27497 · CVE-2026-27498 · CVE-2026-27577 · CVE-2026-27578 · CVE-2026-56357 · CVE-2026-56350 · CVE-2026-56360 · CVE-2026-56349 · CVE-2026-56353

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 7 Nov 23:01 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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