CVE-2026-118679
High · 7.5CVSS
7.5
EPSS
0.3%
Published
Oct 28, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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