CVE-2026-118679 | BDVDB-2026-397385 Detail

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.

Impact#

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Exploit#

History#

1. Version 12026-10-28Record published in the CVE List.
2. Version 22026-11-04Most recent update recorded in the CVE List.