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

Özet

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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.

Etkilenen sürümler1 yazılım

Kaynaklar4 kaynak

• CVE.org kaydı
• NVD kaydı
• github.com/…io/n8n/security/advisories/GHSA-3c3p-5959-3ghr Üretici bülteni
• vulncheck.com/…2.1-slack-token-exfiltration-via-slack-trigger Üçüncü taraf

Kayıt geçmişi

1. 28 Eki 2026 21:59Yayımlandı

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