CVE-2026-56778CWE-863

n8n - Authorization Bypass in Public API Execution Retry Endpoint

Medium · published July 8, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
21.0
In the wild
Unconfirmed
What it is

n8n before 2.25.7 and 2.26.x before 2.26.2 contains an authorization bypass in the Public API execution retry endpoint, which authorizes access using the workflow:read scope instead of workflow:execute. An authenticated user with read-only access to a shared workflow can use the Public API to retry executions of that workflow, bypassing the intended permission boundary between read and execute access. This affects instances where workflows are shared with other users or across projects.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00295 · 21.0th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-07-08T13:49Z
EPSS history
Timeline
  • 08 JUL 13:49Z
    n8n - Authorization Bypass in Public API Execution Retry Endpoint
    cvelistv5