CVE-2026-56775
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
61/100
Published: 2026-07-08
Modified: 2026-10-29
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
AT:
None
VC:
None
VI:
Low
VA:
Low
Description
n8n before 1.123.55, 2.25.7, and 2.26.2 contains an authorization vulnerability in three mutating evaluation test-run endpoints that authorize state-changing actions using the workflow:read scope instead of the action-appropriate workflow:execute scope. On instances using Advanced Permissions (Enterprise/Cloud) with projects and viewer roles, an authenticated user with the project:viewer role can start new evaluation test runs, cancel in-flight runs, and delete run records for workflows they only have read access to.
Weakness Classification (1)
Affected Software (5)
References & Advisories (2)
vendor-advisory
third-party-advisory