CVE-2026-103254

MEDIUMCVSS 6.3

Description

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a path traversal vulnerability in signed resume URL generation for Send-and-Wait approvals. Attackers with workflow creation permissions can mint valid approval URLs for gates in projects they cannot access by exploiting unresolved traversal sequences in caller-controlled node IDs, enabling cross-project approval forgery.

Timeline

Published:October 1st, 2026 11:17 AM

Last modified:October 6th, 2026 1:16 AM

CVSS Scoring

CVSS v3: 6.3 (MEDIUM)

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N

Weaknesses (CWE)

CWE-22

References & Reports

Advisories, patches, and third-party reports

https://github.com/n8n-io/n8n/security/advisories/GHSA-597w-c3jh-g8fg
https://www.vulncheck.com/advisories/n8n-before-1.123.80-2.39.6-and-2.40.1-path-traversal-via-resume-url-generation

Source: NIST NVD · Data may lag official sources by up to one minute