HIGHCVSS v3.1 7.5Vulnerability
CVE-2026-118679
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.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-10-28T19:43:42.952230+00:00
- Cvss severity
- HIGH
- Cvss score
- 7.5
- Retrieved at
- 2026-10-28T19:44:28+00:00
- Score
- 7.5
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-118679
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
- First seen by Signal
- 2026-10-28T19:44:28+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
- Published at
- 2026-10-28T19:17:34.120
- Last modified
- 2026-10-28T19:17:34.250
Related Entities (1)
HAS_WEAKNESS (1)
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