Dashboard / CVE-2026-56778

CVE-2026-56778

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: Low
VI: Low
VA: None

Description

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.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
n8n n8n < 2.25.7
n8n n8n 2.26.0 < 2.26.2
n8n n8n 2.26.0 < 2.26.2
n8n n8n 0 < 2.25.7

References & Advisories (2)

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v4.0
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 — Exploitation Probability

0.29%
Raw Score 0.002950
Percentile 22.1%
Date 2026-10-30

EPSS Trend

2026-10-30
0.00295
2026-10-29
0.00295
2026-10-28
0.00295

Intelligence Sources

mitre ref →
nvd ref →

External Links