Skip to content
CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-118679

n8n before 1.123.83, 2.41.4, and 2.42.1 Slack Token Exfiltration via Slack Trigger

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

n8n before 1.123.83, 2.41.4, and 2.42.1 contains a server-side request forgery vulnerability in the Slack Trigger webhook that allows unauthenticated attackers to exfiltrate Slack tokens by bypassing signature verification when no signing secret is set. Attackers who know the webhook URL can name a file to download, causing the node to send the workspace access token to an attacker host and return the response.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n8n-io n8n

Default version status: unaffected

  • 0 to < 1.123.83affected
  • 1.123.83unaffected
pkg:npm/n8n

n8n-io n8n

Default version status: unaffected

  • 2.42.0 to < 2.42.1affected
  • 2.42.1unaffected
pkg:npm/n8n

n8n-io n8n

Default version status: unaffected

  • 2.0.0 to < 2.41.4affected
  • 2.41.4unaffected
pkg:npm/n8n

References